Home / 258,358.41-356,491.51-143,633.85

Finding the Fourth Proportional to 258,358.41, 356,491.51 and 143,633.85

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Solution

The fourth proportional to 258,358.41, 356,491.51 and 143,633.85 is: 198,190.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,358.41 : 356,491.51 = 143,633.85 : x
  2. Step 2: Convert to fraction form
    258,358.41/356,491.51 = 143,633.85/x
  3. Step 3: Cross multiply
    258,358.41x = 356,491.51 × 143,633.85
  4. Step 4: Simplify right side
    258,358.41x = 51,204,248,073.61
  5. Step 5: Solve for x
    x = 51,204,248,073.61/258,358.41
  6. Step 6: Final answer
    x = 198,190.75

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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.