Home / 252,026.38-378,113.42-74,538.10

Finding the Fourth Proportional to 252,026.38, 378,113.42 and 74,538.10

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Solution

The fourth proportional to 252,026.38, 378,113.42 and 74,538.10 is: 111,828.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,026.38 : 378,113.42 = 74,538.10 : x
  2. Step 2: Convert to fraction form
    252,026.38/378,113.42 = 74,538.10/x
  3. Step 3: Cross multiply
    252,026.38x = 378,113.42 × 74,538.10
  4. Step 4: Simplify right side
    252,026.38x = 28,183,855,538.61
  5. Step 5: Solve for x
    x = 28,183,855,538.61/252,026.38
  6. Step 6: Final answer
    x = 111,828.99

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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.