Home / 284,284.78-392,319.12-156,968.44

Finding the Fourth Proportional to 284,284.78, 392,319.12 and 156,968.44

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Solution

The fourth proportional to 284,284.78, 392,319.12 and 156,968.44 is: 216,619.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,284.78 : 392,319.12 = 156,968.44 : x
  2. Step 2: Convert to fraction form
    284,284.78/392,319.12 = 156,968.44/x
  3. Step 3: Cross multiply
    284,284.78x = 392,319.12 × 156,968.44
  4. Step 4: Simplify right side
    284,284.78x = 61,581,720,248.57
  5. Step 5: Solve for x
    x = 61,581,720,248.57/284,284.78
  6. Step 6: Final answer
    x = 216,619.83

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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.