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Finding the Fourth Proportional to 324,176.97, 486,265.56 and 87,519.48

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Solution

The fourth proportional to 324,176.97, 486,265.56 and 87,519.48 is: 131,279.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,176.97 : 486,265.56 = 87,519.48 : x
  2. Step 2: Convert to fraction form
    324,176.97/486,265.56 = 87,519.48/x
  3. Step 3: Cross multiply
    324,176.97x = 486,265.56 × 87,519.48
  4. Step 4: Simplify right side
    324,176.97x = 42,557,708,953.11
  5. Step 5: Solve for x
    x = 42,557,708,953.11/324,176.97
  6. Step 6: Final answer
    x = 131,279.25

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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.