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Finding the Fourth Proportional to 243,309.85, 364,964.73 and 124,915.39

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Solution

The fourth proportional to 243,309.85, 364,964.73 and 124,915.39 is: 187,373.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,309.85 : 364,964.73 = 124,915.39 : x
  2. Step 2: Convert to fraction form
    243,309.85/364,964.73 = 124,915.39/x
  3. Step 3: Cross multiply
    243,309.85x = 364,964.73 × 124,915.39
  4. Step 4: Simplify right side
    243,309.85x = 45,589,711,584.19
  5. Step 5: Solve for x
    x = 45,589,711,584.19/243,309.85
  6. Step 6: Final answer
    x = 187,373.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.