Home / 230,544.20-318,144.66-128,572.76

Finding the Fourth Proportional to 230,544.20, 318,144.66 and 128,572.76

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Solution

The fourth proportional to 230,544.20, 318,144.66 and 128,572.76 is: 177,426.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,544.20 : 318,144.66 = 128,572.76 : x
  2. Step 2: Convert to fraction form
    230,544.20/318,144.66 = 128,572.76/x
  3. Step 3: Cross multiply
    230,544.20x = 318,144.66 × 128,572.76
  4. Step 4: Simplify right side
    230,544.20x = 40,904,737,015.46
  5. Step 5: Solve for x
    x = 40,904,737,015.46/230,544.20
  6. Step 6: Final answer
    x = 177,426.88

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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.