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Finding the Fourth Proportional to 266,363.32, 399,560.34 and 100,152.76

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Solution

The fourth proportional to 266,363.32, 399,560.34 and 100,152.76 is: 150,234.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,363.32 : 399,560.34 = 100,152.76 : x
  2. Step 2: Convert to fraction form
    266,363.32/399,560.34 = 100,152.76/x
  3. Step 3: Cross multiply
    266,363.32x = 399,560.34 × 100,152.76
  4. Step 4: Simplify right side
    266,363.32x = 40,017,070,837.54
  5. Step 5: Solve for x
    x = 40,017,070,837.54/266,363.32
  6. Step 6: Final answer
    x = 150,234.92

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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.