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Finding the Fourth Proportional to 266,998.15, 400,562.85 and 80,009.65

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Solution

The fourth proportional to 266,998.15, 400,562.85 and 80,009.65 is: 120,034.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,998.15 : 400,562.85 = 80,009.65 : x
  2. Step 2: Convert to fraction form
    266,998.15/400,562.85 = 80,009.65/x
  3. Step 3: Cross multiply
    266,998.15x = 400,562.85 × 80,009.65
  4. Step 4: Simplify right side
    266,998.15x = 32,048,892,430.58
  5. Step 5: Solve for x
    x = 32,048,892,430.58/266,998.15
  6. Step 6: Final answer
    x = 120,034.14

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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.