Home / 258,605.71-356,869.08-143,884.60

Finding the Fourth Proportional to 258,605.71, 356,869.08 and 143,884.60

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Solution

The fourth proportional to 258,605.71, 356,869.08 and 143,884.60 is: 198,556.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,605.71 : 356,869.08 = 143,884.60 : x
  2. Step 2: Convert to fraction form
    258,605.71/356,869.08 = 143,884.60/x
  3. Step 3: Cross multiply
    258,605.71x = 356,869.08 × 143,884.60
  4. Step 4: Simplify right side
    258,605.71x = 51,347,963,936.00
  5. Step 5: Solve for x
    x = 51,347,963,936.00/258,605.71
  6. Step 6: Final answer
    x = 198,556.96

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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.