Home / 279,938.28-386,311.20-152,613.60

Finding the Fourth Proportional to 279,938.28, 386,311.20 and 152,613.60

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Solution

The fourth proportional to 279,938.28, 386,311.20 and 152,613.60 is: 210,604.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,938.28 : 386,311.20 = 152,613.60 : x
  2. Step 2: Convert to fraction form
    279,938.28/386,311.20 = 152,613.60/x
  3. Step 3: Cross multiply
    279,938.28x = 386,311.20 × 152,613.60
  4. Step 4: Simplify right side
    279,938.28x = 58,956,342,952.32
  5. Step 5: Solve for x
    x = 58,956,342,952.32/279,938.28
  6. Step 6: Final answer
    x = 210,604.79

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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.