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Finding the Fourth Proportional to 324,214.80, 486,346.80 and 87,554.10

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Solution

The fourth proportional to 324,214.80, 486,346.80 and 87,554.10 is: 131,337.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,214.80 : 486,346.80 = 87,554.10 : x
  2. Step 2: Convert to fraction form
    324,214.80/486,346.80 = 87,554.10/x
  3. Step 3: Cross multiply
    324,214.80x = 486,346.80 × 87,554.10
  4. Step 4: Simplify right side
    324,214.80x = 42,581,656,361.88
  5. Step 5: Solve for x
    x = 42,581,656,361.88/324,214.80
  6. Step 6: Final answer
    x = 131,337.79

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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.