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Finding the Fourth Proportional to 602.42, 831.29 and 369.54

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Solution

The fourth proportional to 602.42, 831.29 and 369.54 is: 509.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    602.42 : 831.29 = 369.54 : x
  2. Step 2: Convert to fraction form
    602.42/831.29 = 369.54/x
  3. Step 3: Cross multiply
    602.42x = 831.29 × 369.54
  4. Step 4: Simplify right side
    602.42x = 307,193.06
  5. Step 5: Solve for x
    x = 307,193.06/602.42
  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.