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Finding the Fourth Proportional to 286,882.92, 395,892.75 and 159,555.78

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Solution

The fourth proportional to 286,882.92, 395,892.75 and 159,555.78 is: 220,183.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,882.92 : 395,892.75 = 159,555.78 : x
  2. Step 2: Convert to fraction form
    286,882.92/395,892.75 = 159,555.78/x
  3. Step 3: Cross multiply
    286,882.92x = 395,892.75 × 159,555.78
  4. Step 4: Simplify right side
    286,882.92x = 63,166,976,522.60
  5. Step 5: Solve for x
    x = 63,166,976,522.60/286,882.92
  6. Step 6: Final answer
    x = 220,183.82

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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.