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Finding the Fourth Proportional to 324,090.60, 486,132.70 and 102,474.60

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Solution

The fourth proportional to 324,090.60, 486,132.70 and 102,474.60 is: 153,710.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,090.60 : 486,132.70 = 102,474.60 : x
  2. Step 2: Convert to fraction form
    324,090.60/486,132.70 = 102,474.60/x
  3. Step 3: Cross multiply
    324,090.60x = 486,132.70 × 102,474.60
  4. Step 4: Simplify right side
    324,090.60x = 49,816,253,979.42
  5. Step 5: Solve for x
    x = 49,816,253,979.42/324,090.60
  6. Step 6: Final answer
    x = 153,710.89

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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.