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Finding the Fourth Proportional to 437,465.30, 656,116.95 and 121,856.90

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Solution

The fourth proportional to 437,465.30, 656,116.95 and 121,856.90 is: 182,762.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,465.30 : 656,116.95 = 121,856.90 : x
  2. Step 2: Convert to fraction form
    437,465.30/656,116.95 = 121,856.90/x
  3. Step 3: Cross multiply
    437,465.30x = 656,116.95 × 121,856.90
  4. Step 4: Simplify right side
    437,465.30x = 79,952,377,564.46
  5. Step 5: Solve for x
    x = 79,952,377,564.46/437,465.30
  6. Step 6: Final answer
    x = 182,762.79

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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.