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Finding the Fourth Proportional to 243,062.37, 335,425.46 and 135,631.26

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Solution

The fourth proportional to 243,062.37, 335,425.46 and 135,631.26 is: 187,170.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,062.37 : 335,425.46 = 135,631.26 : x
  2. Step 2: Convert to fraction form
    243,062.37/335,425.46 = 135,631.26/x
  3. Step 3: Cross multiply
    243,062.37x = 335,425.46 × 135,631.26
  4. Step 4: Simplify right side
    243,062.37x = 45,494,177,097.72
  5. Step 5: Solve for x
    x = 45,494,177,097.72/243,062.37
  6. Step 6: Final answer
    x = 187,170.80

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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.