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Finding the Fourth Proportional to 590.17, 813.91 and 369.14

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Solution

The fourth proportional to 590.17, 813.91 and 369.14 is: 509.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    590.17 : 813.91 = 369.14 : x
  2. Step 2: Convert to fraction form
    590.17/813.91 = 369.14/x
  3. Step 3: Cross multiply
    590.17x = 813.91 × 369.14
  4. Step 4: Simplify right side
    590.17x = 300,446.74
  5. Step 5: Solve for x
    x = 300,446.74/590.17
  6. Step 6: Final answer
    x = 509.09

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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.