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Finding the Fourth Proportional to 266,988.96, 400,522.32 and 80,015.04

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Solution

The fourth proportional to 266,988.96, 400,522.32 and 80,015.04 is: 120,034.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,988.96 : 400,522.32 = 80,015.04 : x
  2. Step 2: Convert to fraction form
    266,988.96/400,522.32 = 80,015.04/x
  3. Step 3: Cross multiply
    266,988.96x = 400,522.32 × 80,015.04
  4. Step 4: Simplify right side
    266,988.96x = 32,047,809,455.69
  5. Step 5: Solve for x
    x = 32,047,809,455.69/266,988.96
  6. Step 6: Final answer
    x = 120,034.21

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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.