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Finding the Fourth Proportional to 244,156, 366,236.28 and 86,411.20

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Solution

The fourth proportional to 244,156, 366,236.28 and 86,411.20 is: 129,617.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    244,156 : 366,236.28 = 86,411.20 : x
  2. Step 2: Convert to fraction form
    244,156/366,236.28 = 86,411.20/x
  3. Step 3: Cross multiply
    244,156x = 366,236.28 × 86,411.20
  4. Step 4: Simplify right side
    244,156x = 31,646,916,438.34
  5. Step 5: Solve for x
    x = 31,646,916,438.34/244,156
  6. Step 6: Final answer
    x = 129,617.61

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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.