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Finding the Fourth Proportional to 360,548.86, 540,441.91 and 135,812.05

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Solution

The fourth proportional to 360,548.86, 540,441.91 and 135,812.05 is: 203,574.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,548.86 : 540,441.91 = 135,812.05 : x
  2. Step 2: Convert to fraction form
    360,548.86/540,441.91 = 135,812.05/x
  3. Step 3: Cross multiply
    360,548.86x = 540,441.91 × 135,812.05
  4. Step 4: Simplify right side
    360,548.86x = 73,398,523,703.02
  5. Step 5: Solve for x
    x = 73,398,523,703.02/360,548.86
  6. Step 6: Final answer
    x = 203,574.42

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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.