Home / 284,176.16-392,135.20-156,843.60

Finding the Fourth Proportional to 284,176.16, 392,135.20 and 156,843.60

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Solution

The fourth proportional to 284,176.16, 392,135.20 and 156,843.60 is: 216,428.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,176.16 : 392,135.20 = 156,843.60 : x
  2. Step 2: Convert to fraction form
    284,176.16/392,135.20 = 156,843.60/x
  3. Step 3: Cross multiply
    284,176.16x = 392,135.20 × 156,843.60
  4. Step 4: Simplify right side
    284,176.16x = 61,503,896,454.72
  5. Step 5: Solve for x
    x = 61,503,896,454.72/284,176.16
  6. Step 6: Final answer
    x = 216,428.77

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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.