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Finding the Fourth Proportional to 324,336.32, 486,305.76 and 113,998.40

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Solution

The fourth proportional to 324,336.32, 486,305.76 and 113,998.40 is: 170,927.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,336.32 : 486,305.76 = 113,998.40 : x
  2. Step 2: Convert to fraction form
    324,336.32/486,305.76 = 113,998.40/x
  3. Step 3: Cross multiply
    324,336.32x = 486,305.76 × 113,998.40
  4. Step 4: Simplify right side
    324,336.32x = 55,438,078,550.78
  5. Step 5: Solve for x
    x = 55,438,078,550.78/324,336.32
  6. Step 6: Final answer
    x = 170,927.75

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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.