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Finding the Fourth Proportional to 162,425.80, 243,638.70 and 149,984.20

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Solution

The fourth proportional to 162,425.80, 243,638.70 and 149,984.20 is: 224,976.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,425.80 : 243,638.70 = 149,984.20 : x
  2. Step 2: Convert to fraction form
    162,425.80/243,638.70 = 149,984.20/x
  3. Step 3: Cross multiply
    162,425.80x = 243,638.70 × 149,984.20
  4. Step 4: Simplify right side
    162,425.80x = 36,541,955,508.54
  5. Step 5: Solve for x
    x = 36,541,955,508.54/162,425.80
  6. Step 6: Final answer
    x = 224,976.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.