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Finding the Fourth Proportional to 243,338.52, 335,803.62 and 135,910.08

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Solution

The fourth proportional to 243,338.52, 335,803.62 and 135,910.08 is: 187,553.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,338.52 : 335,803.62 = 135,910.08 : x
  2. Step 2: Convert to fraction form
    243,338.52/335,803.62 = 135,910.08/x
  3. Step 3: Cross multiply
    243,338.52x = 335,803.62 × 135,910.08
  4. Step 4: Simplify right side
    243,338.52x = 45,639,096,858.49
  5. Step 5: Solve for x
    x = 45,639,096,858.49/243,338.52
  6. Step 6: Final answer
    x = 187,553.93

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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.