Home / 266,922.28-400,266.78-79,890.04

Finding the Fourth Proportional to 266,922.28, 400,266.78 and 79,890.04

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Solution

The fourth proportional to 266,922.28, 400,266.78 and 79,890.04 is: 119,800.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,922.28 : 400,266.78 = 79,890.04 : x
  2. Step 2: Convert to fraction form
    266,922.28/400,266.78 = 79,890.04/x
  3. Step 3: Cross multiply
    266,922.28x = 400,266.78 × 79,890.04
  4. Step 4: Simplify right side
    266,922.28x = 31,977,329,064.87
  5. Step 5: Solve for x
    x = 31,977,329,064.87/266,922.28
  6. Step 6: Final answer
    x = 119,800.15

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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.