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Finding the Fourth Proportional to 151.71, 210.44 and 146.25

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Solution

The fourth proportional to 151.71, 210.44 and 146.25 is: 202.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    151.71 : 210.44 = 146.25 : x
  2. Step 2: Convert to fraction form
    151.71/210.44 = 146.25/x
  3. Step 3: Cross multiply
    151.71x = 210.44 × 146.25
  4. Step 4: Simplify right side
    151.71x = 30,776.12
  5. Step 5: Solve for x
    x = 30,776.12/151.71
  6. Step 6: Final answer
    x = 202.86

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.