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Finding the Fourth Proportional to 397.04, 547.95 and 220.01

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Solution

The fourth proportional to 397.04, 547.95 and 220.01 is: 303.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    397.04 : 547.95 = 220.01 : x
  2. Step 2: Convert to fraction form
    397.04/547.95 = 220.01/x
  3. Step 3: Cross multiply
    397.04x = 547.95 × 220.01
  4. Step 4: Simplify right side
    397.04x = 120,554.48
  5. Step 5: Solve for x
    x = 120,554.48/397.04
  6. Step 6: Final answer
    x = 303.63

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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.