Home / 278,003.44-417,001.38-67,641.58

Finding the Fourth Proportional to 278,003.44, 417,001.38 and 67,641.58

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Solution

The fourth proportional to 278,003.44, 417,001.38 and 67,641.58 is: 101,461.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,003.44 : 417,001.38 = 67,641.58 : x
  2. Step 2: Convert to fraction form
    278,003.44/417,001.38 = 67,641.58/x
  3. Step 3: Cross multiply
    278,003.44x = 417,001.38 × 67,641.58
  4. Step 4: Simplify right side
    278,003.44x = 28,206,632,205.38
  5. Step 5: Solve for x
    x = 28,206,632,205.38/278,003.44
  6. Step 6: Final answer
    x = 101,461.45

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1.5x scale

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.