Home / 283,079.28-390,660.15-162,243.88

Finding the Fourth Proportional to 283,079.28, 390,660.15 and 162,243.88

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Solution

The fourth proportional to 283,079.28, 390,660.15 and 162,243.88 is: 223,902.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,079.28 : 390,660.15 = 162,243.88 : x
  2. Step 2: Convert to fraction form
    283,079.28/390,660.15 = 162,243.88/x
  3. Step 3: Cross multiply
    283,079.28x = 390,660.15 × 162,243.88
  4. Step 4: Simplify right side
    283,079.28x = 63,382,218,497.38
  5. Step 5: Solve for x
    x = 63,382,218,497.38/283,079.28
  6. Step 6: Final answer
    x = 223,902.72

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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.