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Finding the Fourth Proportional to 324,060.60, 486,090.90 and 99,455.70

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Solution

The fourth proportional to 324,060.60, 486,090.90 and 99,455.70 is: 149,183.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,060.60 : 486,090.90 = 99,455.70 : x
  2. Step 2: Convert to fraction form
    324,060.60/486,090.90 = 99,455.70/x
  3. Step 3: Cross multiply
    324,060.60x = 486,090.90 × 99,455.70
  4. Step 4: Simplify right side
    324,060.60x = 48,344,510,723.13
  5. Step 5: Solve for x
    x = 48,344,510,723.13/324,060.60
  6. Step 6: Final answer
    x = 149,183.55

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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.