Home / 252,318.10-378,550.20-74,829.38

Finding the Fourth Proportional to 252,318.10, 378,550.20 and 74,829.38

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Solution

The fourth proportional to 252,318.10, 378,550.20 and 74,829.38 is: 112,265.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,318.10 : 378,550.20 = 74,829.38 : x
  2. Step 2: Convert to fraction form
    252,318.10/378,550.20 = 74,829.38/x
  3. Step 3: Cross multiply
    252,318.10x = 378,550.20 × 74,829.38
  4. Step 4: Simplify right side
    252,318.10x = 28,326,677,071.62
  5. Step 5: Solve for x
    x = 28,326,677,071.62/252,318.10
  6. Step 6: Final answer
    x = 112,265.74

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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.