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Finding the Fourth Proportional to 590.25, 814.37 and 422.25

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Solution

The fourth proportional to 590.25, 814.37 and 422.25 is: 582.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    590.25 : 814.37 = 422.25 : x
  2. Step 2: Convert to fraction form
    590.25/814.37 = 422.25/x
  3. Step 3: Cross multiply
    590.25x = 814.37 × 422.25
  4. Step 4: Simplify right side
    590.25x = 343,867.73
  5. Step 5: Solve for x
    x = 343,867.73/590.25
  6. Step 6: Final answer
    x = 582.58

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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.