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Finding the Fourth Proportional to 243,487.70, 336,046.40 and 140,119.77

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Solution

The fourth proportional to 243,487.70, 336,046.40 and 140,119.77 is: 193,384.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,487.70 : 336,046.40 = 140,119.77 : x
  2. Step 2: Convert to fraction form
    243,487.70/336,046.40 = 140,119.77/x
  3. Step 3: Cross multiply
    243,487.70x = 336,046.40 × 140,119.77
  4. Step 4: Simplify right side
    243,487.70x = 47,086,743,576.73
  5. Step 5: Solve for x
    x = 47,086,743,576.73/243,487.70
  6. Step 6: Final answer
    x = 193,384.49

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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.