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Finding the Fourth Proportional to 221,800.53, 332,805.69 and 115,127.77

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Solution

The fourth proportional to 221,800.53, 332,805.69 and 115,127.77 is: 172,746.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,800.53 : 332,805.69 = 115,127.77 : x
  2. Step 2: Convert to fraction form
    221,800.53/332,805.69 = 115,127.77/x
  3. Step 3: Cross multiply
    221,800.53x = 332,805.69 × 115,127.77
  4. Step 4: Simplify right side
    221,800.53x = 38,315,176,933.01
  5. Step 5: Solve for x
    x = 38,315,176,933.01/221,800.53
  6. Step 6: Final answer
    x = 172,746.10

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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.