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Finding the Fourth Proportional to 334.84, 501.98 and 129.36

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Solution

The fourth proportional to 334.84, 501.98 and 129.36 is: 193.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    334.84 : 501.98 = 129.36 : x
  2. Step 2: Convert to fraction form
    334.84/501.98 = 129.36/x
  3. Step 3: Cross multiply
    334.84x = 501.98 × 129.36
  4. Step 4: Simplify right side
    334.84x = 64,936.13
  5. Step 5: Solve for x
    x = 64,936.13/334.84
  6. Step 6: Final answer
    x = 193.93

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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.