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Finding the Fourth Proportional to 435.46, 652.73 and 218.92

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Solution

The fourth proportional to 435.46, 652.73 and 218.92 is: 328.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    435.46 : 652.73 = 218.92 : x
  2. Step 2: Convert to fraction form
    435.46/652.73 = 218.92/x
  3. Step 3: Cross multiply
    435.46x = 652.73 × 218.92
  4. Step 4: Simplify right side
    435.46x = 142,892.39
  5. Step 5: Solve for x
    x = 142,892.39/435.46
  6. Step 6: Final answer
    x = 328.15

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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.