Home / 278,175.62-417,315.31-126,383.33

Finding the Fourth Proportional to 278,175.62, 417,315.31 and 126,383.33

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Solution

The fourth proportional to 278,175.62, 417,315.31 and 126,383.33 is: 189,598.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,175.62 : 417,315.31 = 126,383.33 : x
  2. Step 2: Convert to fraction form
    278,175.62/417,315.31 = 126,383.33/x
  3. Step 3: Cross multiply
    278,175.62x = 417,315.31 × 126,383.33
  4. Step 4: Simplify right side
    278,175.62x = 52,741,699,265.11
  5. Step 5: Solve for x
    x = 52,741,699,265.11/278,175.62
  6. Step 6: Final answer
    x = 189,598.57

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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.