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Finding the Fourth Proportional to 324,151.20, 486,226.80 and 245,419.20

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Solution

The fourth proportional to 324,151.20, 486,226.80 and 245,419.20 is: 368,128.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,151.20 : 486,226.80 = 245,419.20 : x
  2. Step 2: Convert to fraction form
    324,151.20/486,226.80 = 245,419.20/x
  3. Step 3: Cross multiply
    324,151.20x = 486,226.80 × 245,419.20
  4. Step 4: Simplify right side
    324,151.20x = 119,329,392,274.56
  5. Step 5: Solve for x
    x = 119,329,392,274.56/324,151.20
  6. Step 6: Final answer
    x = 368,128.80

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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.