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Finding the Fourth Proportional to 341.05, 470.43 and 216.60

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Solution

The fourth proportional to 341.05, 470.43 and 216.60 is: 298.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    341.05 : 470.43 = 216.60 : x
  2. Step 2: Convert to fraction form
    341.05/470.43 = 216.60/x
  3. Step 3: Cross multiply
    341.05x = 470.43 × 216.60
  4. Step 4: Simplify right side
    341.05x = 101,895.14
  5. Step 5: Solve for x
    x = 101,895.14/341.05
  6. Step 6: Final answer
    x = 298.77

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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.