Home / 287,569.70-396,847.76-166,782.61

Finding the Fourth Proportional to 287,569.70, 396,847.76 and 166,782.61

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Solution

The fourth proportional to 287,569.70, 396,847.76 and 166,782.61 is: 230,160.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,569.70 : 396,847.76 = 166,782.61 : x
  2. Step 2: Convert to fraction form
    287,569.70/396,847.76 = 166,782.61/x
  3. Step 3: Cross multiply
    287,569.70x = 396,847.76 × 166,782.61
  4. Step 4: Simplify right side
    287,569.70x = 66,187,305,185.45
  5. Step 5: Solve for x
    x = 66,187,305,185.45/287,569.70
  6. Step 6: Final answer
    x = 230,160.91

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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.