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Finding the Fourth Proportional to 243,034.56, 335,449.26 and 145,023.30

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Solution

The fourth proportional to 243,034.56, 335,449.26 and 145,023.30 is: 200,168.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,034.56 : 335,449.26 = 145,023.30 : x
  2. Step 2: Convert to fraction form
    243,034.56/335,449.26 = 145,023.30/x
  3. Step 3: Cross multiply
    243,034.56x = 335,449.26 × 145,023.30
  4. Step 4: Simplify right side
    243,034.56x = 48,647,958,667.76
  5. Step 5: Solve for x
    x = 48,647,958,667.76/243,034.56
  6. Step 6: Final answer
    x = 200,168.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.