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Finding the Fourth Proportional to 333,478.32, 500,218.61 and 80,758.39

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Solution

The fourth proportional to 333,478.32, 500,218.61 and 80,758.39 is: 121,137.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,478.32 : 500,218.61 = 80,758.39 : x
  2. Step 2: Convert to fraction form
    333,478.32/500,218.61 = 80,758.39/x
  3. Step 3: Cross multiply
    333,478.32x = 500,218.61 × 80,758.39
  4. Step 4: Simplify right side
    333,478.32x = 40,396,850,963.47
  5. Step 5: Solve for x
    x = 40,396,850,963.47/333,478.32
  6. Step 6: Final answer
    x = 121,137.86

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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.