Home / 284,208.05-392,206.20-156,882.71

Finding the Fourth Proportional to 284,208.05, 392,206.20 and 156,882.71

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Solution

The fourth proportional to 284,208.05, 392,206.20 and 156,882.71 is: 216,497.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,208.05 : 392,206.20 = 156,882.71 : x
  2. Step 2: Convert to fraction form
    284,208.05/392,206.20 = 156,882.71/x
  3. Step 3: Cross multiply
    284,208.05x = 392,206.20 × 156,882.71
  4. Step 4: Simplify right side
    284,208.05x = 61,530,371,534.80
  5. Step 5: Solve for x
    x = 61,530,371,534.80/284,208.05
  6. Step 6: Final answer
    x = 216,497.64

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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.