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Finding the Fourth Proportional to 439,002.64, 658,051.96 and 172,655.20

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Solution

The fourth proportional to 439,002.64, 658,051.96 and 172,655.20 is: 258,805.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,002.64 : 658,051.96 = 172,655.20 : x
  2. Step 2: Convert to fraction form
    439,002.64/658,051.96 = 172,655.20/x
  3. Step 3: Cross multiply
    439,002.64x = 658,051.96 × 172,655.20
  4. Step 4: Simplify right side
    439,002.64x = 113,616,092,764.19
  5. Step 5: Solve for x
    x = 113,616,092,764.19/439,002.64
  6. Step 6: Final answer
    x = 258,805.03

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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.