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Finding the Fourth Proportional to 324,624.56, 486,989.16 and 99,984.92

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Solution

The fourth proportional to 324,624.56, 486,989.16 and 99,984.92 is: 149,993.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,624.56 : 486,989.16 = 99,984.92 : x
  2. Step 2: Convert to fraction form
    324,624.56/486,989.16 = 99,984.92/x
  3. Step 3: Cross multiply
    324,624.56x = 486,989.16 × 99,984.92
  4. Step 4: Simplify right side
    324,624.56x = 48,691,572,203.47
  5. Step 5: Solve for x
    x = 48,691,572,203.47/324,624.56
  6. Step 6: Final answer
    x = 149,993.49

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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.