Home / 258,480.41-356,699.45-143,757.95

Finding the Fourth Proportional to 258,480.41, 356,699.45 and 143,757.95

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Solution

The fourth proportional to 258,480.41, 356,699.45 and 143,757.95 is: 198,384.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,480.41 : 356,699.45 = 143,757.95 : x
  2. Step 2: Convert to fraction form
    258,480.41/356,699.45 = 143,757.95/x
  3. Step 3: Cross multiply
    258,480.41x = 356,699.45 × 143,757.95
  4. Step 4: Simplify right side
    258,480.41x = 51,278,380,274.03
  5. Step 5: Solve for x
    x = 51,278,380,274.03/258,480.41
  6. Step 6: Final answer
    x = 198,384.01

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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.