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Finding the Fourth Proportional to 246,287.66, 339,873.80 and 138,892.30

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Solution

The fourth proportional to 246,287.66, 339,873.80 and 138,892.30 is: 191,669.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,287.66 : 339,873.80 = 138,892.30 : x
  2. Step 2: Convert to fraction form
    246,287.66/339,873.80 = 138,892.30/x
  3. Step 3: Cross multiply
    246,287.66x = 339,873.80 × 138,892.30
  4. Step 4: Simplify right side
    246,287.66x = 47,205,853,791.74
  5. Step 5: Solve for x
    x = 47,205,853,791.74/246,287.66
  6. Step 6: Final answer
    x = 191,669.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.