Home / 287,195.40-396,318.96-159,868.26

Finding the Fourth Proportional to 287,195.40, 396,318.96 and 159,868.26

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Solution

The fourth proportional to 287,195.40, 396,318.96 and 159,868.26 is: 220,612.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,195.40 : 396,318.96 = 159,868.26 : x
  2. Step 2: Convert to fraction form
    287,195.40/396,318.96 = 159,868.26/x
  3. Step 3: Cross multiply
    287,195.40x = 396,318.96 × 159,868.26
  4. Step 4: Simplify right side
    287,195.40x = 63,358,822,540.21
  5. Step 5: Solve for x
    x = 63,358,822,540.21/287,195.40
  6. Step 6: Final answer
    x = 220,612.25

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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.