Home / 287,245.34-396,414.27-159,918.14

Finding the Fourth Proportional to 287,245.34, 396,414.27 and 159,918.14

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Solution

The fourth proportional to 287,245.34, 396,414.27 and 159,918.14 is: 220,695.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,245.34 : 396,414.27 = 159,918.14 : x
  2. Step 2: Convert to fraction form
    287,245.34/396,414.27 = 159,918.14/x
  3. Step 3: Cross multiply
    287,245.34x = 396,414.27 × 159,918.14
  4. Step 4: Simplify right side
    287,245.34x = 63,393,832,727.86
  5. Step 5: Solve for x
    x = 63,393,832,727.86/287,245.34
  6. Step 6: Final answer
    x = 220,695.77

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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.