Home / 258,046.25-356,091.64-143,332.28

Finding the Fourth Proportional to 258,046.25, 356,091.64 and 143,332.28

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Solution

The fourth proportional to 258,046.25, 356,091.64 and 143,332.28 is: 197,791.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,046.25 : 356,091.64 = 143,332.28 : x
  2. Step 2: Convert to fraction form
    258,046.25/356,091.64 = 143,332.28/x
  3. Step 3: Cross multiply
    258,046.25x = 356,091.64 × 143,332.28
  4. Step 4: Simplify right side
    258,046.25x = 51,039,426,650.14
  5. Step 5: Solve for x
    x = 51,039,426,650.14/258,046.25
  6. Step 6: Final answer
    x = 197,791.78

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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.