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Finding the Fourth Proportional to 590.25, 814.61 and 357.38

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Solution

The fourth proportional to 590.25, 814.61 and 357.38 is: 493.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    590.25 : 814.61 = 357.38 : x
  2. Step 2: Convert to fraction form
    590.25/814.61 = 357.38/x
  3. Step 3: Cross multiply
    590.25x = 814.61 × 357.38
  4. Step 4: Simplify right side
    590.25x = 291,125.32
  5. Step 5: Solve for x
    x = 291,125.32/590.25
  6. Step 6: Final answer
    x = 493.22

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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.