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Finding the Fourth Proportional to 286,778.46, 395,751.88 and 159,452.94

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Solution

The fourth proportional to 286,778.46, 395,751.88 and 159,452.94 is: 220,043.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,778.46 : 395,751.88 = 159,452.94 : x
  2. Step 2: Convert to fraction form
    286,778.46/395,751.88 = 159,452.94/x
  3. Step 3: Cross multiply
    286,778.46x = 395,751.88 × 159,452.94
  4. Step 4: Simplify right side
    286,778.46x = 63,103,800,776.53
  5. Step 5: Solve for x
    x = 63,103,800,776.53/286,778.46
  6. Step 6: Final answer
    x = 220,043.73

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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.