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Finding the Fourth Proportional to 147.32, 202.89 and 146.87

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Solution

The fourth proportional to 147.32, 202.89 and 146.87 is: 202.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    147.32 : 202.89 = 146.87 : x
  2. Step 2: Convert to fraction form
    147.32/202.89 = 146.87/x
  3. Step 3: Cross multiply
    147.32x = 202.89 × 146.87
  4. Step 4: Simplify right side
    147.32x = 29,798.45
  5. Step 5: Solve for x
    x = 29,798.45/147.32
  6. Step 6: Final answer
    x = 202.27

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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.