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Finding the Fourth Proportional to 205,549.56, 283,704.12 and 124,960

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Solution

The fourth proportional to 205,549.56, 283,704.12 and 124,960 is: 172,472.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,549.56 : 283,704.12 = 124,960 : x
  2. Step 2: Convert to fraction form
    205,549.56/283,704.12 = 124,960/x
  3. Step 3: Cross multiply
    205,549.56x = 283,704.12 × 124,960
  4. Step 4: Simplify right side
    205,549.56x = 35,451,666,835.20
  5. Step 5: Solve for x
    x = 35,451,666,835.20/205,549.56
  6. Step 6: Final answer
    x = 172,472.60

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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.