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Finding the Fourth Proportional to 263,616.34, 395,435.44 and 76,627.84

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Solution

The fourth proportional to 263,616.34, 395,435.44 and 76,627.84 is: 114,944.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,616.34 : 395,435.44 = 76,627.84 : x
  2. Step 2: Convert to fraction form
    263,616.34/395,435.44 = 76,627.84/x
  3. Step 3: Cross multiply
    263,616.34x = 395,435.44 × 76,627.84
  4. Step 4: Simplify right side
    263,616.34x = 30,301,363,626.65
  5. Step 5: Solve for x
    x = 30,301,363,626.65/263,616.34
  6. Step 6: Final answer
    x = 114,944.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.