Home / 258,607.03-356,879.46-143,890.50

Finding the Fourth Proportional to 258,607.03, 356,879.46 and 143,890.50

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Solution

The fourth proportional to 258,607.03, 356,879.46 and 143,890.50 is: 198,569.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,607.03 : 356,879.46 = 143,890.50 : x
  2. Step 2: Convert to fraction form
    258,607.03/356,879.46 = 143,890.50/x
  3. Step 3: Cross multiply
    258,607.03x = 356,879.46 × 143,890.50
  4. Step 4: Simplify right side
    258,607.03x = 51,351,563,939.13
  5. Step 5: Solve for x
    x = 51,351,563,939.13/258,607.03
  6. Step 6: Final answer
    x = 198,569.87

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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.