Home / 258,455.68-356,669.06-143,731.82

Finding the Fourth Proportional to 258,455.68, 356,669.06 and 143,731.82

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Solution

The fourth proportional to 258,455.68, 356,669.06 and 143,731.82 is: 198,350.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,455.68 : 356,669.06 = 143,731.82 : x
  2. Step 2: Convert to fraction form
    258,455.68/356,669.06 = 143,731.82/x
  3. Step 3: Cross multiply
    258,455.68x = 356,669.06 × 143,731.82
  4. Step 4: Simplify right side
    258,455.68x = 51,264,693,304.50
  5. Step 5: Solve for x
    x = 51,264,693,304.50/258,455.68
  6. Step 6: Final answer
    x = 198,350.04

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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.