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Finding the Fourth Proportional to 146.07, 220.27 and 143.34

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Solution

The fourth proportional to 146.07, 220.27 and 143.34 is: 216.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    146.07 : 220.27 = 143.34 : x
  2. Step 2: Convert to fraction form
    146.07/220.27 = 143.34/x
  3. Step 3: Cross multiply
    146.07x = 220.27 × 143.34
  4. Step 4: Simplify right side
    146.07x = 31,573.14
  5. Step 5: Solve for x
    x = 31,573.14/146.07
  6. Step 6: Final answer
    x = 216.15

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.