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Finding the Fourth Proportional to 540,313.94, 810,470.91 and 203,430.17

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Solution

The fourth proportional to 540,313.94, 810,470.91 and 203,430.17 is: 305,145.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,313.94 : 810,470.91 = 203,430.17 : x
  2. Step 2: Convert to fraction form
    540,313.94/810,470.91 = 203,430.17/x
  3. Step 3: Cross multiply
    540,313.94x = 810,470.91 × 203,430.17
  4. Step 4: Simplify right side
    540,313.94x = 164,874,235,001.36
  5. Step 5: Solve for x
    x = 164,874,235,001.36/540,313.94
  6. Step 6: Final answer
    x = 305,145.26

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.