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Finding the Fourth Proportional to 252,687.60, 379,031.40 and 65,699.10

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Solution

The fourth proportional to 252,687.60, 379,031.40 and 65,699.10 is: 98,548.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,687.60 : 379,031.40 = 65,699.10 : x
  2. Step 2: Convert to fraction form
    252,687.60/379,031.40 = 65,699.10/x
  3. Step 3: Cross multiply
    252,687.60x = 379,031.40 × 65,699.10
  4. Step 4: Simplify right side
    252,687.60x = 24,902,021,851.74
  5. Step 5: Solve for x
    x = 24,902,021,851.74/252,687.60
  6. Step 6: Final answer
    x = 98,548.65

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1.5x scale

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.