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Finding the Fourth Proportional to 576,744.30, 865,267.65 and 221,769.90

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Solution

The fourth proportional to 576,744.30, 865,267.65 and 221,769.90 is: 332,712.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,744.30 : 865,267.65 = 221,769.90 : x
  2. Step 2: Convert to fraction form
    576,744.30/865,267.65 = 221,769.90/x
  3. Step 3: Cross multiply
    576,744.30x = 865,267.65 × 221,769.90
  4. Step 4: Simplify right side
    576,744.30x = 191,890,320,213.74
  5. Step 5: Solve for x
    x = 191,890,320,213.74/576,744.30
  6. Step 6: Final answer
    x = 332,712.99

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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.