Home / 278,380.99-417,367.03-88,732.18

Finding the Fourth Proportional to 278,380.99, 417,367.03 and 88,732.18

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Solution

The fourth proportional to 278,380.99, 417,367.03 and 88,732.18 is: 133,033.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,380.99 : 417,367.03 = 88,732.18 : x
  2. Step 2: Convert to fraction form
    278,380.99/417,367.03 = 88,732.18/x
  3. Step 3: Cross multiply
    278,380.99x = 417,367.03 × 88,732.18
  4. Step 4: Simplify right side
    278,380.99x = 37,033,886,432.03
  5. Step 5: Solve for x
    x = 37,033,886,432.03/278,380.99
  6. Step 6: Final answer
    x = 133,033.10

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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.