Home / 252,179.02-378,273.93-74,689.66

Finding the Fourth Proportional to 252,179.02, 378,273.93 and 74,689.66

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Solution

The fourth proportional to 252,179.02, 378,273.93 and 74,689.66 is: 112,036.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,179.02 : 378,273.93 = 74,689.66 : x
  2. Step 2: Convert to fraction form
    252,179.02/378,273.93 = 74,689.66/x
  3. Step 3: Cross multiply
    252,179.02x = 378,273.93 × 74,689.66
  4. Step 4: Simplify right side
    252,179.02x = 28,253,151,218.56
  5. Step 5: Solve for x
    x = 28,253,151,218.56/252,179.02
  6. Step 6: Final answer
    x = 112,036.09

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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.