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Finding the Fourth Proportional to 154,543.60, 231,815.40 and 43,735.60

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Solution

The fourth proportional to 154,543.60, 231,815.40 and 43,735.60 is: 65,603.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,543.60 : 231,815.40 = 43,735.60 : x
  2. Step 2: Convert to fraction form
    154,543.60/231,815.40 = 43,735.60/x
  3. Step 3: Cross multiply
    154,543.60x = 231,815.40 × 43,735.60
  4. Step 4: Simplify right side
    154,543.60x = 10,138,585,608.24
  5. Step 5: Solve for x
    x = 10,138,585,608.24/154,543.60
  6. Step 6: Final answer
    x = 65,603.40

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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.