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Finding the Fourth Proportional to 220,917.52, 304,855.32 and 125,411.68

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Solution

The fourth proportional to 220,917.52, 304,855.32 and 125,411.68 is: 173,061.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,917.52 : 304,855.32 = 125,411.68 : x
  2. Step 2: Convert to fraction form
    220,917.52/304,855.32 = 125,411.68/x
  3. Step 3: Cross multiply
    220,917.52x = 304,855.32 × 125,411.68
  4. Step 4: Simplify right side
    220,917.52x = 38,232,417,838.14
  5. Step 5: Solve for x
    x = 38,232,417,838.14/220,917.52
  6. Step 6: Final answer
    x = 173,061.95

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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.