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Finding the Fourth Proportional to 508,401.26, 762,148.85 and 193,079.60

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Solution

The fourth proportional to 508,401.26, 762,148.85 and 193,079.60 is: 289,447.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,401.26 : 762,148.85 = 193,079.60 : x
  2. Step 2: Convert to fraction form
    508,401.26/762,148.85 = 193,079.60/x
  3. Step 3: Cross multiply
    508,401.26x = 762,148.85 × 193,079.60
  4. Step 4: Simplify right side
    508,401.26x = 147,155,393,180.38
  5. Step 5: Solve for x
    x = 147,155,393,180.38/508,401.26
  6. Step 6: Final answer
    x = 289,447.34

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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.