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Finding the Fourth Proportional to 437,008.74, 654,968.61 and 156,217.38

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Solution

The fourth proportional to 437,008.74, 654,968.61 and 156,217.38 is: 234,131.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,008.74 : 654,968.61 = 156,217.38 : x
  2. Step 2: Convert to fraction form
    437,008.74/654,968.61 = 156,217.38/x
  3. Step 3: Cross multiply
    437,008.74x = 654,968.61 × 156,217.38
  4. Step 4: Simplify right side
    437,008.74x = 102,317,480,236.44
  5. Step 5: Solve for x
    x = 102,317,480,236.44/437,008.74
  6. Step 6: Final answer
    x = 234,131.43

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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.