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Finding the Fourth Proportional to 364.16, 542.79 and 361.33

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Solution

The fourth proportional to 364.16, 542.79 and 361.33 is: 538.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    364.16 : 542.79 = 361.33 : x
  2. Step 2: Convert to fraction form
    364.16/542.79 = 361.33/x
  3. Step 3: Cross multiply
    364.16x = 542.79 × 361.33
  4. Step 4: Simplify right side
    364.16x = 196,126.31
  5. Step 5: Solve for x
    x = 196,126.31/364.16
  6. Step 6: Final answer
    x = 538.57

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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.