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Finding the Fourth Proportional to 324,364.28, 486,592.98 and 99,743.60

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Solution

The fourth proportional to 324,364.28, 486,592.98 and 99,743.60 is: 149,629.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,364.28 : 486,592.98 = 99,743.60 : x
  2. Step 2: Convert to fraction form
    324,364.28/486,592.98 = 99,743.60/x
  3. Step 3: Cross multiply
    324,364.28x = 486,592.98 × 99,743.60
  4. Step 4: Simplify right side
    324,364.28x = 48,534,535,559.93
  5. Step 5: Solve for x
    x = 48,534,535,559.93/324,364.28
  6. Step 6: Final answer
    x = 149,629.72

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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.