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Finding the Fourth Proportional to 284,373.40, 392,458.50 and 163,553.80

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Solution

The fourth proportional to 284,373.40, 392,458.50 and 163,553.80 is: 225,717.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,373.40 : 392,458.50 = 163,553.80 : x
  2. Step 2: Convert to fraction form
    284,373.40/392,458.50 = 163,553.80/x
  3. Step 3: Cross multiply
    284,373.40x = 392,458.50 × 163,553.80
  4. Step 4: Simplify right side
    284,373.40x = 64,188,079,017.30
  5. Step 5: Solve for x
    x = 64,188,079,017.30/284,373.40
  6. Step 6: Final answer
    x = 225,717.59

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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.