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Finding the Fourth Proportional to 324,182.34, 486,235.20 and 87,543.45

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Solution

The fourth proportional to 324,182.34, 486,235.20 and 87,543.45 is: 131,304.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,182.34 : 486,235.20 = 87,543.45 : x
  2. Step 2: Convert to fraction form
    324,182.34/486,235.20 = 87,543.45/x
  3. Step 3: Cross multiply
    324,182.34x = 486,235.20 × 87,543.45
  4. Step 4: Simplify right side
    324,182.34x = 42,566,706,919.44
  5. Step 5: Solve for x
    x = 42,566,706,919.44/324,182.34
  6. Step 6: Final answer
    x = 131,304.83

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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.