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Finding the Fourth Proportional to 208,456.53, 313,103.18 and 124,380.73

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Solution

The fourth proportional to 208,456.53, 313,103.18 and 124,380.73 is: 186,820.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,456.53 : 313,103.18 = 124,380.73 : x
  2. Step 2: Convert to fraction form
    208,456.53/313,103.18 = 124,380.73/x
  3. Step 3: Cross multiply
    208,456.53x = 313,103.18 × 124,380.73
  4. Step 4: Simplify right side
    208,456.53x = 38,944,002,093.72
  5. Step 5: Solve for x
    x = 38,944,002,093.72/208,456.53
  6. Step 6: Final answer
    x = 186,820.73

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1.5x scale

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.