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Finding the Fourth Proportional to 364.48, 505.48 and 351.52

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Solution

The fourth proportional to 364.48, 505.48 and 351.52 is: 487.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    364.48 : 505.48 = 351.52 : x
  2. Step 2: Convert to fraction form
    364.48/505.48 = 351.52/x
  3. Step 3: Cross multiply
    364.48x = 505.48 × 351.52
  4. Step 4: Simplify right side
    364.48x = 177,686.33
  5. Step 5: Solve for x
    x = 177,686.33/364.48
  6. Step 6: Final answer
    x = 487.51

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.