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Finding the Fourth Proportional to 286,882.96, 395,912.52 and 159,555.84

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Solution

The fourth proportional to 286,882.96, 395,912.52 and 159,555.84 is: 220,194.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,882.96 : 395,912.52 = 159,555.84 : x
  2. Step 2: Convert to fraction form
    286,882.96/395,912.52 = 159,555.84/x
  3. Step 3: Cross multiply
    286,882.96x = 395,912.52 × 159,555.84
  4. Step 4: Simplify right side
    286,882.96x = 63,170,154,695.12
  5. Step 5: Solve for x
    x = 63,170,154,695.12/286,882.96
  6. Step 6: Final answer
    x = 220,194.87

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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.