Home / 278,545.26-386,359.03-271,162.36

Finding the Fourth Proportional to 278,545.26, 386,359.03 and 271,162.36

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Solution

The fourth proportional to 278,545.26, 386,359.03 and 271,162.36 is: 376,118.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,545.26 : 386,359.03 = 271,162.36 : x
  2. Step 2: Convert to fraction form
    278,545.26/386,359.03 = 271,162.36/x
  3. Step 3: Cross multiply
    278,545.26x = 386,359.03 × 271,162.36
  4. Step 4: Simplify right side
    278,545.26x = 104,766,024,973.41
  5. Step 5: Solve for x
    x = 104,766,024,973.41/278,545.26
  6. Step 6: Final answer
    x = 376,118.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.