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Finding the Fourth Proportional to 268,326.78, 402,600.30 and 141,933.24

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Solution

The fourth proportional to 268,326.78, 402,600.30 and 141,933.24 is: 212,958.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,326.78 : 402,600.30 = 141,933.24 : x
  2. Step 2: Convert to fraction form
    268,326.78/402,600.30 = 141,933.24/x
  3. Step 3: Cross multiply
    268,326.78x = 402,600.30 × 141,933.24
  4. Step 4: Simplify right side
    268,326.78x = 57,142,365,003.97
  5. Step 5: Solve for x
    x = 57,142,365,003.97/268,326.78
  6. Step 6: Final answer
    x = 212,958.11

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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.