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Finding the Fourth Proportional to 317,255.27, 475,795.42 and 137,401.25

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Solution

The fourth proportional to 317,255.27, 475,795.42 and 137,401.25 is: 206,063.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,255.27 : 475,795.42 = 137,401.25 : x
  2. Step 2: Convert to fraction form
    317,255.27/475,795.42 = 137,401.25/x
  3. Step 3: Cross multiply
    317,255.27x = 475,795.42 × 137,401.25
  4. Step 4: Simplify right side
    317,255.27x = 65,374,882,729.79
  5. Step 5: Solve for x
    x = 65,374,882,729.79/317,255.27
  6. Step 6: Final answer
    x = 206,063.98

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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.