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Finding the Fourth Proportional to 231,880.40, 347,820.60 and 195,138.80

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Solution

The fourth proportional to 231,880.40, 347,820.60 and 195,138.80 is: 292,708.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,880.40 : 347,820.60 = 195,138.80 : x
  2. Step 2: Convert to fraction form
    231,880.40/347,820.60 = 195,138.80/x
  3. Step 3: Cross multiply
    231,880.40x = 347,820.60 × 195,138.80
  4. Step 4: Simplify right side
    231,880.40x = 67,873,294,499.28
  5. Step 5: Solve for x
    x = 67,873,294,499.28/231,880.40
  6. Step 6: Final answer
    x = 292,708.20

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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.