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Finding the Fourth Proportional to 243,444.20, 335,919.60 and 136,000.88

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Solution

The fourth proportional to 243,444.20, 335,919.60 and 136,000.88 is: 187,662.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,444.20 : 335,919.60 = 136,000.88 : x
  2. Step 2: Convert to fraction form
    243,444.20/335,919.60 = 136,000.88/x
  3. Step 3: Cross multiply
    243,444.20x = 335,919.60 × 136,000.88
  4. Step 4: Simplify right side
    243,444.20x = 45,685,361,209.25
  5. Step 5: Solve for x
    x = 45,685,361,209.25/243,444.20
  6. Step 6: Final answer
    x = 187,662.56

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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.