Home / 319,618.60-479,090.88-106,329.55

Finding the Fourth Proportional to 319,618.60, 479,090.88 and 106,329.55

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Solution

The fourth proportional to 319,618.60, 479,090.88 and 106,329.55 is: 159,382.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,618.60 : 479,090.88 = 106,329.55 : x
  2. Step 2: Convert to fraction form
    319,618.60/479,090.88 = 106,329.55/x
  3. Step 3: Cross multiply
    319,618.60x = 479,090.88 × 106,329.55
  4. Step 4: Simplify right side
    319,618.60x = 50,941,517,080.17
  5. Step 5: Solve for x
    x = 50,941,517,080.17/319,618.60
  6. Step 6: Final answer
    x = 159,382.20

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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.