Home / 284,212.08-392,213.19-156,887.78

Finding the Fourth Proportional to 284,212.08, 392,213.19 and 156,887.78

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Solution

The fourth proportional to 284,212.08, 392,213.19 and 156,887.78 is: 216,505.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,212.08 : 392,213.19 = 156,887.78 : x
  2. Step 2: Convert to fraction form
    284,212.08/392,213.19 = 156,887.78/x
  3. Step 3: Cross multiply
    284,212.08x = 392,213.19 × 156,887.78
  4. Step 4: Simplify right side
    284,212.08x = 61,533,454,704.75
  5. Step 5: Solve for x
    x = 61,533,454,704.75/284,212.08
  6. Step 6: Final answer
    x = 216,505.42

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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.