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Finding the Fourth Proportional to 202.89, 303.75 and 164.45

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Solution

The fourth proportional to 202.89, 303.75 and 164.45 is: 246.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    202.89 : 303.75 = 164.45 : x
  2. Step 2: Convert to fraction form
    202.89/303.75 = 164.45/x
  3. Step 3: Cross multiply
    202.89x = 303.75 × 164.45
  4. Step 4: Simplify right side
    202.89x = 49,950.74
  5. Step 5: Solve for x
    x = 49,950.74/202.89
  6. Step 6: Final answer
    x = 246.20

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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.