Home / 284,371.28-392,432.53-155,311.55

Finding the Fourth Proportional to 284,371.28, 392,432.53 and 155,311.55

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Solution

The fourth proportional to 284,371.28, 392,432.53 and 155,311.55 is: 214,330.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,371.28 : 392,432.53 = 155,311.55 : x
  2. Step 2: Convert to fraction form
    284,371.28/392,432.53 = 155,311.55/x
  3. Step 3: Cross multiply
    284,371.28x = 392,432.53 × 155,311.55
  4. Step 4: Simplify right side
    284,371.28x = 60,949,304,208.32
  5. Step 5: Solve for x
    x = 60,949,304,208.32/284,371.28
  6. Step 6: Final answer
    x = 214,330.03

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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.