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Finding the Fourth Proportional to 268,034.80, 403,978.82 and 231,041.36

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Solution

The fourth proportional to 268,034.80, 403,978.82 and 231,041.36 is: 348,222.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,034.80 : 403,978.82 = 231,041.36 : x
  2. Step 2: Convert to fraction form
    268,034.80/403,978.82 = 231,041.36/x
  3. Step 3: Cross multiply
    268,034.80x = 403,978.82 × 231,041.36
  4. Step 4: Simplify right side
    268,034.80x = 93,335,815,984.00
  5. Step 5: Solve for x
    x = 93,335,815,984.00/268,034.80
  6. Step 6: Final answer
    x = 348,222.75

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.