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Finding the Fourth Proportional to 252,958.48, 349,087.28 and 138,241.98

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Solution

The fourth proportional to 252,958.48, 349,087.28 and 138,241.98 is: 190,776.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,958.48 : 349,087.28 = 138,241.98 : x
  2. Step 2: Convert to fraction form
    252,958.48/349,087.28 = 138,241.98/x
  3. Step 3: Cross multiply
    252,958.48x = 349,087.28 × 138,241.98
  4. Step 4: Simplify right side
    252,958.48x = 48,258,516,780.01
  5. Step 5: Solve for x
    x = 48,258,516,780.01/252,958.48
  6. Step 6: Final answer
    x = 190,776.43

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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.