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Finding the Fourth Proportional to 334.26, 501.33 and 139.23

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Solution

The fourth proportional to 334.26, 501.33 and 139.23 is: 208.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    334.26 : 501.33 = 139.23 : x
  2. Step 2: Convert to fraction form
    334.26/501.33 = 139.23/x
  3. Step 3: Cross multiply
    334.26x = 501.33 × 139.23
  4. Step 4: Simplify right side
    334.26x = 69,800.18
  5. Step 5: Solve for x
    x = 69,800.18/334.26
  6. Step 6: Final answer
    x = 208.82

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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.