Home / 258,274.86-356,402.01-143,546.05

Finding the Fourth Proportional to 258,274.86, 356,402.01 and 143,546.05

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Solution

The fourth proportional to 258,274.86, 356,402.01 and 143,546.05 is: 198,083.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,274.86 : 356,402.01 = 143,546.05 : x
  2. Step 2: Convert to fraction form
    258,274.86/356,402.01 = 143,546.05/x
  3. Step 3: Cross multiply
    258,274.86x = 356,402.01 × 143,546.05
  4. Step 4: Simplify right side
    258,274.86x = 51,160,100,747.56
  5. Step 5: Solve for x
    x = 51,160,100,747.56/258,274.86
  6. Step 6: Final answer
    x = 198,083.94

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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.