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Finding the Fourth Proportional to 155,540.60, 233,310.90 and 43,220.60

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Solution

The fourth proportional to 155,540.60, 233,310.90 and 43,220.60 is: 64,830.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,540.60 : 233,310.90 = 43,220.60 : x
  2. Step 2: Convert to fraction form
    155,540.60/233,310.90 = 43,220.60/x
  3. Step 3: Cross multiply
    155,540.60x = 233,310.90 × 43,220.60
  4. Step 4: Simplify right side
    155,540.60x = 10,083,837,084.54
  5. Step 5: Solve for x
    x = 10,083,837,084.54/155,540.60
  6. Step 6: Final answer
    x = 64,830.90

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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.