Home / 324,949.12-487,378.59-100,316.95

Finding the Fourth Proportional to 324,949.12, 487,378.59 and 100,316.95

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Solution

The fourth proportional to 324,949.12, 487,378.59 and 100,316.95 is: 150,461.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,949.12 : 487,378.59 = 100,316.95 : x
  2. Step 2: Convert to fraction form
    324,949.12/487,378.59 = 100,316.95/x
  3. Step 3: Cross multiply
    324,949.12x = 487,378.59 × 100,316.95
  4. Step 4: Simplify right side
    324,949.12x = 48,892,332,049.47
  5. Step 5: Solve for x
    x = 48,892,332,049.47/324,949.12
  6. Step 6: Final answer
    x = 150,461.50

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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.