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Finding the Fourth Proportional to 324,032.40, 486,048.60 and 137,043.90

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Solution

The fourth proportional to 324,032.40, 486,048.60 and 137,043.90 is: 205,565.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,032.40 : 486,048.60 = 137,043.90 : x
  2. Step 2: Convert to fraction form
    324,032.40/486,048.60 = 137,043.90/x
  3. Step 3: Cross multiply
    324,032.40x = 486,048.60 × 137,043.90
  4. Step 4: Simplify right side
    324,032.40x = 66,609,995,733.54
  5. Step 5: Solve for x
    x = 66,609,995,733.54/324,032.40
  6. Step 6: Final answer
    x = 205,565.85

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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.