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Finding the Fourth Proportional to 360,228.27, 540,342.33 and 135,639.03

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Solution

The fourth proportional to 360,228.27, 540,342.33 and 135,639.03 is: 203,458.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,228.27 : 540,342.33 = 135,639.03 : x
  2. Step 2: Convert to fraction form
    360,228.27/540,342.33 = 135,639.03/x
  3. Step 3: Cross multiply
    360,228.27x = 540,342.33 × 135,639.03
  4. Step 4: Simplify right side
    360,228.27x = 73,291,509,509.14
  5. Step 5: Solve for x
    x = 73,291,509,509.14/360,228.27
  6. Step 6: Final answer
    x = 203,458.52

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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.