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Finding the Fourth Proportional to 243,193.61, 335,593.62 and 135,770.57

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Solution

The fourth proportional to 243,193.61, 335,593.62 and 135,770.57 is: 187,355.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,193.61 : 335,593.62 = 135,770.57 : x
  2. Step 2: Convert to fraction form
    243,193.61/335,593.62 = 135,770.57/x
  3. Step 3: Cross multiply
    243,193.61x = 335,593.62 × 135,770.57
  4. Step 4: Simplify right side
    243,193.61x = 45,563,735,397.80
  5. Step 5: Solve for x
    x = 45,563,735,397.80/243,193.61
  6. Step 6: Final answer
    x = 187,355.81

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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.