Home / 287,108.24-396,201.06-159,781.10

Finding the Fourth Proportional to 287,108.24, 396,201.06 and 159,781.10

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Solution

The fourth proportional to 287,108.24, 396,201.06 and 159,781.10 is: 220,493.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,108.24 : 396,201.06 = 159,781.10 : x
  2. Step 2: Convert to fraction form
    287,108.24/396,201.06 = 159,781.10/x
  3. Step 3: Cross multiply
    287,108.24x = 396,201.06 × 159,781.10
  4. Step 4: Simplify right side
    287,108.24x = 63,305,439,206.96
  5. Step 5: Solve for x
    x = 63,305,439,206.96/287,108.24
  6. Step 6: Final answer
    x = 220,493.29

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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.