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Finding the Fourth Proportional to 195,274.40, 292,911.60 and 115,440.80

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Solution

The fourth proportional to 195,274.40, 292,911.60 and 115,440.80 is: 173,161.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,274.40 : 292,911.60 = 115,440.80 : x
  2. Step 2: Convert to fraction form
    195,274.40/292,911.60 = 115,440.80/x
  3. Step 3: Cross multiply
    195,274.40x = 292,911.60 × 115,440.80
  4. Step 4: Simplify right side
    195,274.40x = 33,813,949,433.28
  5. Step 5: Solve for x
    x = 33,813,949,433.28/195,274.40
  6. Step 6: Final answer
    x = 173,161.20

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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.