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Finding the Fourth Proportional to 416.90, 575.16 and 269.52

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Solution

The fourth proportional to 416.90, 575.16 and 269.52 is: 371.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    416.90 : 575.16 = 269.52 : x
  2. Step 2: Convert to fraction form
    416.90/575.16 = 269.52/x
  3. Step 3: Cross multiply
    416.90x = 575.16 × 269.52
  4. Step 4: Simplify right side
    416.90x = 155,017.12
  5. Step 5: Solve for x
    x = 155,017.12/416.90
  6. Step 6: Final answer
    x = 371.83

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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.