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Finding the Fourth Proportional to 469,869.67, 648,414.75 and 255,009.88

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Solution

The fourth proportional to 469,869.67, 648,414.75 and 255,009.88 is: 351,910.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,869.67 : 648,414.75 = 255,009.88 : x
  2. Step 2: Convert to fraction form
    469,869.67/648,414.75 = 255,009.88/x
  3. Step 3: Cross multiply
    469,869.67x = 648,414.75 × 255,009.88
  4. Step 4: Simplify right side
    469,869.67x = 165,352,167,587.73
  5. Step 5: Solve for x
    x = 165,352,167,587.73/469,869.67
  6. Step 6: Final answer
    x = 351,910.71

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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.