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Finding the Fourth Proportional to 493,581.50, 740,417.43 and 138,593.12

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Solution

The fourth proportional to 493,581.50, 740,417.43 and 138,593.12 is: 207,902.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,581.50 : 740,417.43 = 138,593.12 : x
  2. Step 2: Convert to fraction form
    493,581.50/740,417.43 = 138,593.12/x
  3. Step 3: Cross multiply
    493,581.50x = 740,417.43 × 138,593.12
  4. Step 4: Simplify right side
    493,581.50x = 102,616,763,230.64
  5. Step 5: Solve for x
    x = 102,616,763,230.64/493,581.50
  6. Step 6: Final answer
    x = 207,902.37

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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.