Home / 284,117.34-392,069.58-155,052.55

Finding the Fourth Proportional to 284,117.34, 392,069.58 and 155,052.55

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Solution

The fourth proportional to 284,117.34, 392,069.58 and 155,052.55 is: 213,965.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,117.34 : 392,069.58 = 155,052.55 : x
  2. Step 2: Convert to fraction form
    284,117.34/392,069.58 = 155,052.55/x
  3. Step 3: Cross multiply
    284,117.34x = 392,069.58 × 155,052.55
  4. Step 4: Simplify right side
    284,117.34x = 60,791,386,731.85
  5. Step 5: Solve for x
    x = 60,791,386,731.85/284,117.34
  6. Step 6: Final answer
    x = 213,965.78

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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.