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Finding the Fourth Proportional to 266,360.32, 399,555.84 and 100,149.76

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Solution

The fourth proportional to 266,360.32, 399,555.84 and 100,149.76 is: 150,230.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,360.32 : 399,555.84 = 100,149.76 : x
  2. Step 2: Convert to fraction form
    266,360.32/399,555.84 = 100,149.76/x
  3. Step 3: Cross multiply
    266,360.32x = 399,555.84 × 100,149.76
  4. Step 4: Simplify right side
    266,360.32x = 40,015,421,482.60
  5. Step 5: Solve for x
    x = 40,015,421,482.60/266,360.32
  6. Step 6: Final answer
    x = 150,230.42

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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.