Home / 258,021.90-356,064.57-143,294.04

Finding the Fourth Proportional to 258,021.90, 356,064.57 and 143,294.04

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Solution

The fourth proportional to 258,021.90, 356,064.57 and 143,294.04 is: 197,742.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,021.90 : 356,064.57 = 143,294.04 : x
  2. Step 2: Convert to fraction form
    258,021.90/356,064.57 = 143,294.04/x
  3. Step 3: Cross multiply
    258,021.90x = 356,064.57 × 143,294.04
  4. Step 4: Simplify right side
    258,021.90x = 51,021,930,736.16
  5. Step 5: Solve for x
    x = 51,021,930,736.16/258,021.90
  6. Step 6: Final answer
    x = 197,742.64

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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.