Home / 266,743.60-400,397.38-260,719.90

Finding the Fourth Proportional to 266,743.60, 400,397.38 and 260,719.90

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Solution

The fourth proportional to 266,743.60, 400,397.38 and 260,719.90 is: 391,355.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,743.60 : 400,397.38 = 260,719.90 : x
  2. Step 2: Convert to fraction form
    266,743.60/400,397.38 = 260,719.90/x
  3. Step 3: Cross multiply
    266,743.60x = 400,397.38 × 260,719.90
  4. Step 4: Simplify right side
    266,743.60x = 104,391,563,221.07
  5. Step 5: Solve for x
    x = 104,391,563,221.07/266,743.60
  6. Step 6: Final answer
    x = 391,355.46

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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.