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Finding the Fourth Proportional to 243,229.57, 335,653.55 and 135,801.25

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Solution

The fourth proportional to 243,229.57, 335,653.55 and 135,801.25 is: 187,403.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,229.57 : 335,653.55 = 135,801.25 : x
  2. Step 2: Convert to fraction form
    243,229.57/335,653.55 = 135,801.25/x
  3. Step 3: Cross multiply
    243,229.57x = 335,653.55 × 135,801.25
  4. Step 4: Simplify right side
    243,229.57x = 45,582,170,977.93
  5. Step 5: Solve for x
    x = 45,582,170,977.93/243,229.57
  6. Step 6: Final answer
    x = 187,403.90

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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.