Home / 263,929.12-395,816.28-74,376.88

Finding the Fourth Proportional to 263,929.12, 395,816.28 and 74,376.88

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Solution

The fourth proportional to 263,929.12, 395,816.28 and 74,376.88 is: 111,543.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,929.12 : 395,816.28 = 74,376.88 : x
  2. Step 2: Convert to fraction form
    263,929.12/395,816.28 = 74,376.88/x
  3. Step 3: Cross multiply
    263,929.12x = 395,816.28 × 74,376.88
  4. Step 4: Simplify right side
    263,929.12x = 29,439,579,959.61
  5. Step 5: Solve for x
    x = 29,439,579,959.61/263,929.12
  6. Step 6: Final answer
    x = 111,543.51

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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.