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Finding the Fourth Proportional to 414.16, 571.86 and 383.05

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Solution

The fourth proportional to 414.16, 571.86 and 383.05 is: 528.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    414.16 : 571.86 = 383.05 : x
  2. Step 2: Convert to fraction form
    414.16/571.86 = 383.05/x
  3. Step 3: Cross multiply
    414.16x = 571.86 × 383.05
  4. Step 4: Simplify right side
    414.16x = 219,050.97
  5. Step 5: Solve for x
    x = 219,050.97/414.16
  6. Step 6: Final answer
    x = 528.90

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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.