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Finding the Fourth Proportional to 372,409.83, 557,909.64 and 220,151.04

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Solution

The fourth proportional to 372,409.83, 557,909.64 and 220,151.04 is: 329,809.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,409.83 : 557,909.64 = 220,151.04 : x
  2. Step 2: Convert to fraction form
    372,409.83/557,909.64 = 220,151.04/x
  3. Step 3: Cross multiply
    372,409.83x = 557,909.64 × 220,151.04
  4. Step 4: Simplify right side
    372,409.83x = 122,824,387,472.03
  5. Step 5: Solve for x
    x = 122,824,387,472.03/372,409.83
  6. Step 6: Final answer
    x = 329,809.74

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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.