Home / 287,147.27-396,263.23-159,820.13

Finding the Fourth Proportional to 287,147.27, 396,263.23 and 159,820.13

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Solution

The fourth proportional to 287,147.27, 396,263.23 and 159,820.13 is: 220,551.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,147.27 : 396,263.23 = 159,820.13 : x
  2. Step 2: Convert to fraction form
    287,147.27/396,263.23 = 159,820.13/x
  3. Step 3: Cross multiply
    287,147.27x = 396,263.23 × 159,820.13
  4. Step 4: Simplify right side
    287,147.27x = 63,330,840,932.82
  5. Step 5: Solve for x
    x = 63,330,840,932.82/287,147.27
  6. Step 6: Final answer
    x = 220,551.78

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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.