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Finding the Fourth Proportional to 438,952.60, 658,034.70 and 172,894.60

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Solution

The fourth proportional to 438,952.60, 658,034.70 and 172,894.60 is: 259,186.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,952.60 : 658,034.70 = 172,894.60 : x
  2. Step 2: Convert to fraction form
    438,952.60/658,034.70 = 172,894.60/x
  3. Step 3: Cross multiply
    438,952.60x = 658,034.70 × 172,894.60
  4. Step 4: Simplify right side
    438,952.60x = 113,770,646,242.62
  5. Step 5: Solve for x
    x = 113,770,646,242.62/438,952.60
  6. Step 6: Final answer
    x = 259,186.63

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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.