Home / 258,677.81-356,982.18-143,964.18

Finding the Fourth Proportional to 258,677.81, 356,982.18 and 143,964.18

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Solution

The fourth proportional to 258,677.81, 356,982.18 and 143,964.18 is: 198,674.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,677.81 : 356,982.18 = 143,964.18 : x
  2. Step 2: Convert to fraction form
    258,677.81/356,982.18 = 143,964.18/x
  3. Step 3: Cross multiply
    258,677.81x = 356,982.18 × 143,964.18
  4. Step 4: Simplify right side
    258,677.81x = 51,392,646,818.31
  5. Step 5: Solve for x
    x = 51,392,646,818.31/258,677.81
  6. Step 6: Final answer
    x = 198,674.36

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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.