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Finding the Fourth Proportional to 340.52, 470.03 and 216.18

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Solution

The fourth proportional to 340.52, 470.03 and 216.18 is: 298.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    340.52 : 470.03 = 216.18 : x
  2. Step 2: Convert to fraction form
    340.52/470.03 = 216.18/x
  3. Step 3: Cross multiply
    340.52x = 470.03 × 216.18
  4. Step 4: Simplify right side
    340.52x = 101,610.00
  5. Step 5: Solve for x
    x = 101,610.00/340.52
  6. Step 6: Final answer
    x = 298.40

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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.