Home / 268,730.38-403,087.02-66,327.61

Finding the Fourth Proportional to 268,730.38, 403,087.02 and 66,327.61

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Solution

The fourth proportional to 268,730.38, 403,087.02 and 66,327.61 is: 99,489.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,730.38 : 403,087.02 = 66,327.61 : x
  2. Step 2: Convert to fraction form
    268,730.38/403,087.02 = 66,327.61/x
  3. Step 3: Cross multiply
    268,730.38x = 403,087.02 × 66,327.61
  4. Step 4: Simplify right side
    268,730.38x = 26,735,798,658.62
  5. Step 5: Solve for x
    x = 26,735,798,658.62/268,730.38
  6. Step 6: Final answer
    x = 99,489.30

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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.