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Finding the Fourth Proportional to 243,080.39, 335,410.83 and 135,650.17

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Solution

The fourth proportional to 243,080.39, 335,410.83 and 135,650.17 is: 187,174.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,080.39 : 335,410.83 = 135,650.17 : x
  2. Step 2: Convert to fraction form
    243,080.39/335,410.83 = 135,650.17/x
  3. Step 3: Cross multiply
    243,080.39x = 335,410.83 × 135,650.17
  4. Step 4: Simplify right side
    243,080.39x = 45,498,536,109.34
  5. Step 5: Solve for x
    x = 45,498,536,109.34/243,080.39
  6. Step 6: Final answer
    x = 187,174.85

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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.