Home / 252,500.56-378,686.04-74,966.38

Finding the Fourth Proportional to 252,500.56, 378,686.04 and 74,966.38

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Solution

The fourth proportional to 252,500.56, 378,686.04 and 74,966.38 is: 112,430.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,500.56 : 378,686.04 = 74,966.38 : x
  2. Step 2: Convert to fraction form
    252,500.56/378,686.04 = 74,966.38/x
  3. Step 3: Cross multiply
    252,500.56x = 378,686.04 × 74,966.38
  4. Step 4: Simplify right side
    252,500.56x = 28,388,721,575.34
  5. Step 5: Solve for x
    x = 28,388,721,575.34/252,500.56
  6. Step 6: Final answer
    x = 112,430.33

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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.