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Finding the Fourth Proportional to 602.43, 831.38 and 369.51

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Solution

The fourth proportional to 602.43, 831.38 and 369.51 is: 509.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    602.43 : 831.38 = 369.51 : x
  2. Step 2: Convert to fraction form
    602.43/831.38 = 369.51/x
  3. Step 3: Cross multiply
    602.43x = 831.38 × 369.51
  4. Step 4: Simplify right side
    602.43x = 307,201.38
  5. Step 5: Solve for x
    x = 307,201.38/602.43
  6. Step 6: Final answer
    x = 509.94

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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.