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Finding the Fourth Proportional to 334.36, 501.62 and 142

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Solution

The fourth proportional to 334.36, 501.62 and 142 is: 213.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    334.36 : 501.62 = 142 : x
  2. Step 2: Convert to fraction form
    334.36/501.62 = 142/x
  3. Step 3: Cross multiply
    334.36x = 501.62 × 142
  4. Step 4: Simplify right side
    334.36x = 71,230.04
  5. Step 5: Solve for x
    x = 71,230.04/334.36
  6. Step 6: Final answer
    x = 213.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.