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Finding the Fourth Proportional to 502,522.20, 753,812.01 and 142,664.90

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Solution

The fourth proportional to 502,522.20, 753,812.01 and 142,664.90 is: 214,005.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,522.20 : 753,812.01 = 142,664.90 : x
  2. Step 2: Convert to fraction form
    502,522.20/753,812.01 = 142,664.90/x
  3. Step 3: Cross multiply
    502,522.20x = 753,812.01 × 142,664.90
  4. Step 4: Simplify right side
    502,522.20x = 107,542,511,256.39
  5. Step 5: Solve for x
    x = 107,542,511,256.39/502,522.20
  6. Step 6: Final answer
    x = 214,005.49

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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.