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Finding the Fourth Proportional to 243,487.50, 336,046.14 and 140,119.58

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Solution

The fourth proportional to 243,487.50, 336,046.14 and 140,119.58 is: 193,384.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,487.50 : 336,046.14 = 140,119.58 : x
  2. Step 2: Convert to fraction form
    243,487.50/336,046.14 = 140,119.58/x
  3. Step 3: Cross multiply
    243,487.50x = 336,046.14 × 140,119.58
  4. Step 4: Simplify right side
    243,487.50x = 47,086,641,616.59
  5. Step 5: Solve for x
    x = 47,086,641,616.59/243,487.50
  6. Step 6: Final answer
    x = 193,384.23

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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.