Home / 258,387.04-356,536.24-143,656.48

Finding the Fourth Proportional to 258,387.04, 356,536.24 and 143,656.48

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Solution

The fourth proportional to 258,387.04, 356,536.24 and 143,656.48 is: 198,224.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,387.04 : 356,536.24 = 143,656.48 : x
  2. Step 2: Convert to fraction form
    258,387.04/356,536.24 = 143,656.48/x
  3. Step 3: Cross multiply
    258,387.04x = 356,536.24 × 143,656.48
  4. Step 4: Simplify right side
    258,387.04x = 51,218,741,230.84
  5. Step 5: Solve for x
    x = 51,218,741,230.84/258,387.04
  6. Step 6: Final answer
    x = 198,224.88

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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.