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Finding the Fourth Proportional to 221,411.30, 332,116.95 and 88,312.10

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Solution

The fourth proportional to 221,411.30, 332,116.95 and 88,312.10 is: 132,468.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,411.30 : 332,116.95 = 88,312.10 : x
  2. Step 2: Convert to fraction form
    221,411.30/332,116.95 = 88,312.10/x
  3. Step 3: Cross multiply
    221,411.30x = 332,116.95 × 88,312.10
  4. Step 4: Simplify right side
    221,411.30x = 29,329,945,300.10
  5. Step 5: Solve for x
    x = 29,329,945,300.10/221,411.30
  6. Step 6: Final answer
    x = 132,468.15

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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.