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Finding the Fourth Proportional to 220.02, 303.18 and 146.28

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Solution

The fourth proportional to 220.02, 303.18 and 146.28 is: 201.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    220.02 : 303.18 = 146.28 : x
  2. Step 2: Convert to fraction form
    220.02/303.18 = 146.28/x
  3. Step 3: Cross multiply
    220.02x = 303.18 × 146.28
  4. Step 4: Simplify right side
    220.02x = 44,349.17
  5. Step 5: Solve for x
    x = 44,349.17/220.02
  6. Step 6: Final answer
    x = 201.57

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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.