Home / 258,495.28-356,719.98-143,772.82

Finding the Fourth Proportional to 258,495.28, 356,719.98 and 143,772.82

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Solution

The fourth proportional to 258,495.28, 356,719.98 and 143,772.82 is: 198,404.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,495.28 : 356,719.98 = 143,772.82 : x
  2. Step 2: Convert to fraction form
    258,495.28/356,719.98 = 143,772.82/x
  3. Step 3: Cross multiply
    258,495.28x = 356,719.98 × 143,772.82
  4. Step 4: Simplify right side
    258,495.28x = 51,286,637,474.94
  5. Step 5: Solve for x
    x = 51,286,637,474.94/258,495.28
  6. Step 6: Final answer
    x = 198,404.54

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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.