Home / 252,174.12-378,262.40-74,684.50

Finding the Fourth Proportional to 252,174.12, 378,262.40 and 74,684.50

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Solution

The fourth proportional to 252,174.12, 378,262.40 and 74,684.50 is: 112,027.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,174.12 : 378,262.40 = 74,684.50 : x
  2. Step 2: Convert to fraction form
    252,174.12/378,262.40 = 74,684.50/x
  3. Step 3: Cross multiply
    252,174.12x = 378,262.40 × 74,684.50
  4. Step 4: Simplify right side
    252,174.12x = 28,250,338,212.80
  5. Step 5: Solve for x
    x = 28,250,338,212.80/252,174.12
  6. Step 6: Final answer
    x = 112,027.11

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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.