Home / 284,102.32-392,049.66-156,776.20

Finding the Fourth Proportional to 284,102.32, 392,049.66 and 156,776.20

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Solution

The fourth proportional to 284,102.32, 392,049.66 and 156,776.20 is: 216,344.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,102.32 : 392,049.66 = 156,776.20 : x
  2. Step 2: Convert to fraction form
    284,102.32/392,049.66 = 156,776.20/x
  3. Step 3: Cross multiply
    284,102.32x = 392,049.66 × 156,776.20
  4. Step 4: Simplify right side
    284,102.32x = 61,464,055,906.09
  5. Step 5: Solve for x
    x = 61,464,055,906.09/284,102.32
  6. Step 6: Final answer
    x = 216,344.79

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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.