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Finding the Fourth Proportional to 324,348.68, 486,521.87 and 87,691.32

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Solution

The fourth proportional to 324,348.68, 486,521.87 and 87,691.32 is: 131,536.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,348.68 : 486,521.87 = 87,691.32 : x
  2. Step 2: Convert to fraction form
    324,348.68/486,521.87 = 87,691.32/x
  3. Step 3: Cross multiply
    324,348.68x = 486,521.87 × 87,691.32
  4. Step 4: Simplify right side
    324,348.68x = 42,663,744,550.71
  5. Step 5: Solve for x
    x = 42,663,744,550.71/324,348.68
  6. Step 6: Final answer
    x = 131,536.67

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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.