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Finding the Fourth Proportional to 417.11, 575.37 and 277.18

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Solution

The fourth proportional to 417.11, 575.37 and 277.18 is: 382.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    417.11 : 575.37 = 277.18 : x
  2. Step 2: Convert to fraction form
    417.11/575.37 = 277.18/x
  3. Step 3: Cross multiply
    417.11x = 575.37 × 277.18
  4. Step 4: Simplify right side
    417.11x = 159,479.62
  5. Step 5: Solve for x
    x = 159,479.62/417.11
  6. Step 6: Final answer
    x = 382.35

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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.