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Finding the Fourth Proportional to 437,928.29, 604,348.91 and 256,691.60

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Solution

The fourth proportional to 437,928.29, 604,348.91 and 256,691.60 is: 354,239.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,928.29 : 604,348.91 = 256,691.60 : x
  2. Step 2: Convert to fraction form
    437,928.29/604,348.91 = 256,691.60/x
  3. Step 3: Cross multiply
    437,928.29x = 604,348.91 × 256,691.60
  4. Step 4: Simplify right side
    437,928.29x = 155,131,288,666.16
  5. Step 5: Solve for x
    x = 155,131,288,666.16/437,928.29
  6. Step 6: Final answer
    x = 354,239.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.