Home / 278,131.24-416,949.40-100,598.76

Finding the Fourth Proportional to 278,131.24, 416,949.40 and 100,598.76

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Solution

The fourth proportional to 278,131.24, 416,949.40 and 100,598.76 is: 150,808.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,131.24 : 416,949.40 = 100,598.76 : x
  2. Step 2: Convert to fraction form
    278,131.24/416,949.40 = 100,598.76/x
  3. Step 3: Cross multiply
    278,131.24x = 416,949.40 × 100,598.76
  4. Step 4: Simplify right side
    278,131.24x = 41,944,592,622.74
  5. Step 5: Solve for x
    x = 41,944,592,622.74/278,131.24
  6. Step 6: Final answer
    x = 150,808.63

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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.