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Finding the Fourth Proportional to 243,233.56, 335,695.89 and 135,810.55

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Solution

The fourth proportional to 243,233.56, 335,695.89 and 135,810.55 is: 187,437.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,233.56 : 335,695.89 = 135,810.55 : x
  2. Step 2: Convert to fraction form
    243,233.56/335,695.89 = 135,810.55/x
  3. Step 3: Cross multiply
    243,233.56x = 335,695.89 × 135,810.55
  4. Step 4: Simplify right side
    243,233.56x = 45,591,043,453.64
  5. Step 5: Solve for x
    x = 45,591,043,453.64/243,233.56
  6. Step 6: Final answer
    x = 187,437.31

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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.