Home / 286,761.32-395,729.70-159,436.88

Finding the Fourth Proportional to 286,761.32, 395,729.70 and 159,436.88

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Solution

The fourth proportional to 286,761.32, 395,729.70 and 159,436.88 is: 220,022.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,761.32 : 395,729.70 = 159,436.88 : x
  2. Step 2: Convert to fraction form
    286,761.32/395,729.70 = 159,436.88/x
  3. Step 3: Cross multiply
    286,761.32x = 395,729.70 × 159,436.88
  4. Step 4: Simplify right side
    286,761.32x = 63,093,908,691.34
  5. Step 5: Solve for x
    x = 63,093,908,691.34/286,761.32
  6. Step 6: Final answer
    x = 220,022.38

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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.