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Finding the Fourth Proportional to 243,306.38, 335,714.10 and 135,859.88

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Solution

The fourth proportional to 243,306.38, 335,714.10 and 135,859.88 is: 187,459.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,306.38 : 335,714.10 = 135,859.88 : x
  2. Step 2: Convert to fraction form
    243,306.38/335,714.10 = 135,859.88/x
  3. Step 3: Cross multiply
    243,306.38x = 335,714.10 × 135,859.88
  4. Step 4: Simplify right side
    243,306.38x = 45,610,077,340.31
  5. Step 5: Solve for x
    x = 45,610,077,340.31/243,306.38
  6. Step 6: Final answer
    x = 187,459.44

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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.