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Finding the Fourth Proportional to 266,003.60, 398,919.74 and 88,462.94

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Solution

The fourth proportional to 266,003.60, 398,919.74 and 88,462.94 is: 132,665.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,003.60 : 398,919.74 = 88,462.94 : x
  2. Step 2: Convert to fraction form
    266,003.60/398,919.74 = 88,462.94/x
  3. Step 3: Cross multiply
    266,003.60x = 398,919.74 × 88,462.94
  4. Step 4: Simplify right side
    266,003.60x = 35,289,610,587.52
  5. Step 5: Solve for x
    x = 35,289,610,587.52/266,003.60
  6. Step 6: Final answer
    x = 132,665.92

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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.