Home / 258,387.98-356,594.40-143,687.25

Finding the Fourth Proportional to 258,387.98, 356,594.40 and 143,687.25

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Solution

The fourth proportional to 258,387.98, 356,594.40 and 143,687.25 is: 198,298.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,387.98 : 356,594.40 = 143,687.25 : x
  2. Step 2: Convert to fraction form
    258,387.98/356,594.40 = 143,687.25/x
  3. Step 3: Cross multiply
    258,387.98x = 356,594.40 × 143,687.25
  4. Step 4: Simplify right side
    258,387.98x = 51,238,068,701.40
  5. Step 5: Solve for x
    x = 51,238,068,701.40/258,387.98
  6. Step 6: Final answer
    x = 198,298.97

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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.