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Finding the Fourth Proportional to 152.19, 226.62 and 148.32

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Solution

The fourth proportional to 152.19, 226.62 and 148.32 is: 220.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    152.19 : 226.62 = 148.32 : x
  2. Step 2: Convert to fraction form
    152.19/226.62 = 148.32/x
  3. Step 3: Cross multiply
    152.19x = 226.62 × 148.32
  4. Step 4: Simplify right side
    152.19x = 33,612.28
  5. Step 5: Solve for x
    x = 33,612.28/152.19
  6. Step 6: Final answer
    x = 220.86

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.