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Finding the Fourth Proportional to 442,304.64, 663,064.11 and 172,370.25

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Solution

The fourth proportional to 442,304.64, 663,064.11 and 172,370.25 is: 258,402.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,304.64 : 663,064.11 = 172,370.25 : x
  2. Step 2: Convert to fraction form
    442,304.64/663,064.11 = 172,370.25/x
  3. Step 3: Cross multiply
    442,304.64x = 663,064.11 × 172,370.25
  4. Step 4: Simplify right side
    442,304.64x = 114,292,526,406.73
  5. Step 5: Solve for x
    x = 114,292,526,406.73/442,304.64
  6. Step 6: Final answer
    x = 258,402.28

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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.