Home / 257,350.15-355,162.89-148,474

Finding the Fourth Proportional to 257,350.15, 355,162.89 and 148,474

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Solution

The fourth proportional to 257,350.15, 355,162.89 and 148,474 is: 204,905.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,350.15 : 355,162.89 = 148,474 : x
  2. Step 2: Convert to fraction form
    257,350.15/355,162.89 = 148,474/x
  3. Step 3: Cross multiply
    257,350.15x = 355,162.89 × 148,474
  4. Step 4: Simplify right side
    257,350.15x = 52,732,454,929.86
  5. Step 5: Solve for x
    x = 52,732,454,929.86/257,350.15
  6. Step 6: Final answer
    x = 204,905.48

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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.