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Finding the Fourth Proportional to 334.65, 501.43 and 206.13

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Solution

The fourth proportional to 334.65, 501.43 and 206.13 is: 308.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    334.65 : 501.43 = 206.13 : x
  2. Step 2: Convert to fraction form
    334.65/501.43 = 206.13/x
  3. Step 3: Cross multiply
    334.65x = 501.43 × 206.13
  4. Step 4: Simplify right side
    334.65x = 103,356.74
  5. Step 5: Solve for x
    x = 103,356.74/334.65
  6. Step 6: Final answer
    x = 308.85

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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.