Home / 258,322.26-356,542.56-143,641.15

Finding the Fourth Proportional to 258,322.26, 356,542.56 and 143,641.15

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Solution

The fourth proportional to 258,322.26, 356,542.56 and 143,641.15 is: 198,256.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,322.26 : 356,542.56 = 143,641.15 : x
  2. Step 2: Convert to fraction form
    258,322.26/356,542.56 = 143,641.15/x
  3. Step 3: Cross multiply
    258,322.26x = 356,542.56 × 143,641.15
  4. Step 4: Simplify right side
    258,322.26x = 51,214,182,450.99
  5. Step 5: Solve for x
    x = 51,214,182,450.99/258,322.26
  6. Step 6: Final answer
    x = 198,256.94

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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.