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Finding the Fourth Proportional to 243,081.48, 335,469.24 and 135,672.48

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Solution

The fourth proportional to 243,081.48, 335,469.24 and 135,672.48 is: 187,237.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,081.48 : 335,469.24 = 135,672.48 : x
  2. Step 2: Convert to fraction form
    243,081.48/335,469.24 = 135,672.48/x
  3. Step 3: Cross multiply
    243,081.48x = 335,469.24 × 135,672.48
  4. Step 4: Simplify right side
    243,081.48x = 45,513,943,754.52
  5. Step 5: Solve for x
    x = 45,513,943,754.52/243,081.48
  6. Step 6: Final answer
    x = 187,237.40

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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.