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Finding the Fourth Proportional to 521.25, 719.12 and 334.71

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Solution

The fourth proportional to 521.25, 719.12 and 334.71 is: 461.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    521.25 : 719.12 = 334.71 : x
  2. Step 2: Convert to fraction form
    521.25/719.12 = 334.71/x
  3. Step 3: Cross multiply
    521.25x = 719.12 × 334.71
  4. Step 4: Simplify right side
    521.25x = 240,696.66
  5. Step 5: Solve for x
    x = 240,696.66/521.25
  6. Step 6: Final answer
    x = 461.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.