Home / 258,177.98-356,284.78-143,456.16

Finding the Fourth Proportional to 258,177.98, 356,284.78 and 143,456.16

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Solution

The fourth proportional to 258,177.98, 356,284.78 and 143,456.16 is: 197,969.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,177.98 : 356,284.78 = 143,456.16 : x
  2. Step 2: Convert to fraction form
    258,177.98/356,284.78 = 143,456.16/x
  3. Step 3: Cross multiply
    258,177.98x = 356,284.78 × 143,456.16
  4. Step 4: Simplify right side
    258,177.98x = 51,111,247,382.67
  5. Step 5: Solve for x
    x = 51,111,247,382.67/258,177.98
  6. Step 6: Final answer
    x = 197,969.04

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1.5x scale

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.