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Finding the Fourth Proportional to 324,387.58, 486,685.48 and 155,920.13

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Solution

The fourth proportional to 324,387.58, 486,685.48 and 155,920.13 is: 233,930.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,387.58 : 486,685.48 = 155,920.13 : x
  2. Step 2: Convert to fraction form
    324,387.58/486,685.48 = 155,920.13/x
  3. Step 3: Cross multiply
    324,387.58x = 486,685.48 × 155,920.13
  4. Step 4: Simplify right side
    324,387.58x = 75,884,063,310.71
  5. Step 5: Solve for x
    x = 75,884,063,310.71/324,387.58
  6. Step 6: Final answer
    x = 233,930.24

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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.