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Finding the Fourth Proportional to 284,583.60, 392,755.80 and 163,730.16

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Solution

The fourth proportional to 284,583.60, 392,755.80 and 163,730.16 is: 225,965.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,583.60 : 392,755.80 = 163,730.16 : x
  2. Step 2: Convert to fraction form
    284,583.60/392,755.80 = 163,730.16/x
  3. Step 3: Cross multiply
    284,583.60x = 392,755.80 × 163,730.16
  4. Step 4: Simplify right side
    284,583.60x = 64,305,969,974.93
  5. Step 5: Solve for x
    x = 64,305,969,974.93/284,583.60
  6. Step 6: Final answer
    x = 225,965.13

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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.