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Finding the Fourth Proportional to 284,473.60, 392,451.84 and 163,587.52

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Solution

The fourth proportional to 284,473.60, 392,451.84 and 163,587.52 is: 225,680.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,473.60 : 392,451.84 = 163,587.52 : x
  2. Step 2: Convert to fraction form
    284,473.60/392,451.84 = 163,587.52/x
  3. Step 3: Cross multiply
    284,473.60x = 392,451.84 × 163,587.52
  4. Step 4: Simplify right side
    284,473.60x = 64,200,223,225.04
  5. Step 5: Solve for x
    x = 64,200,223,225.04/284,473.60
  6. Step 6: Final answer
    x = 225,680.78

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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.