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Finding the Fourth Proportional to 332.36, 495.70 and 281.36

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Solution

The fourth proportional to 332.36, 495.70 and 281.36 is: 419.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    332.36 : 495.70 = 281.36 : x
  2. Step 2: Convert to fraction form
    332.36/495.70 = 281.36/x
  3. Step 3: Cross multiply
    332.36x = 495.70 × 281.36
  4. Step 4: Simplify right side
    332.36x = 139,470.15
  5. Step 5: Solve for x
    x = 139,470.15/332.36
  6. Step 6: Final answer
    x = 419.64

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.