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Finding the Fourth Proportional to 243,375.20, 365,062.80 and 159,394.40

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Solution

The fourth proportional to 243,375.20, 365,062.80 and 159,394.40 is: 239,091.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,375.20 : 365,062.80 = 159,394.40 : x
  2. Step 2: Convert to fraction form
    243,375.20/365,062.80 = 159,394.40/x
  3. Step 3: Cross multiply
    243,375.20x = 365,062.80 × 159,394.40
  4. Step 4: Simplify right side
    243,375.20x = 58,188,965,968.32
  5. Step 5: Solve for x
    x = 58,188,965,968.32/243,375.20
  6. Step 6: Final answer
    x = 239,091.60

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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.