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Finding the Fourth Proportional to 324,958.60, 487,318.47 and 111,666.03

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Solution

The fourth proportional to 324,958.60, 487,318.47 and 111,666.03 is: 167,458.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,958.60 : 487,318.47 = 111,666.03 : x
  2. Step 2: Convert to fraction form
    324,958.60/487,318.47 = 111,666.03/x
  3. Step 3: Cross multiply
    324,958.60x = 487,318.47 × 111,666.03
  4. Step 4: Simplify right side
    324,958.60x = 54,416,918,890.57
  5. Step 5: Solve for x
    x = 54,416,918,890.57/324,958.60
  6. Step 6: Final answer
    x = 167,458.01

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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.