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Finding the Fourth Proportional to 438,843.07, 658,206.28 and 172,532.08

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Solution

The fourth proportional to 438,843.07, 658,206.28 and 172,532.08 is: 258,775.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,843.07 : 658,206.28 = 172,532.08 : x
  2. Step 2: Convert to fraction form
    438,843.07/658,206.28 = 172,532.08/x
  3. Step 3: Cross multiply
    438,843.07x = 658,206.28 × 172,532.08
  4. Step 4: Simplify right side
    438,843.07x = 113,561,698,557.46
  5. Step 5: Solve for x
    x = 113,561,698,557.46/438,843.07
  6. Step 6: Final answer
    x = 258,775.19

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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.