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Finding the Fourth Proportional to 243,144.61, 335,544.85 and 134,248.59

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Solution

The fourth proportional to 243,144.61, 335,544.85 and 134,248.59 is: 185,265.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,144.61 : 335,544.85 = 134,248.59 : x
  2. Step 2: Convert to fraction form
    243,144.61/335,544.85 = 134,248.59/x
  3. Step 3: Cross multiply
    243,144.61x = 335,544.85 × 134,248.59
  4. Step 4: Simplify right side
    243,144.61x = 45,046,422,406.92
  5. Step 5: Solve for x
    x = 45,046,422,406.92/243,144.61
  6. Step 6: Final answer
    x = 185,265.97

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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.