Home / 321,932.31-482,907.60-85,275.02

Finding the Fourth Proportional to 321,932.31, 482,907.60 and 85,275.02

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Solution

The fourth proportional to 321,932.31, 482,907.60 and 85,275.02 is: 127,914.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,932.31 : 482,907.60 = 85,275.02 : x
  2. Step 2: Convert to fraction form
    321,932.31/482,907.60 = 85,275.02/x
  3. Step 3: Cross multiply
    321,932.31x = 482,907.60 × 85,275.02
  4. Step 4: Simplify right side
    321,932.31x = 41,179,955,248.15
  5. Step 5: Solve for x
    x = 41,179,955,248.15/321,932.31
  6. Step 6: Final answer
    x = 127,914.95

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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.