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Finding the Fourth Proportional to 154.53, 212.63 and 150.89

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Solution

The fourth proportional to 154.53, 212.63 and 150.89 is: 207.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    154.53 : 212.63 = 150.89 : x
  2. Step 2: Convert to fraction form
    154.53/212.63 = 150.89/x
  3. Step 3: Cross multiply
    154.53x = 212.63 × 150.89
  4. Step 4: Simplify right side
    154.53x = 32,081.92
  5. Step 5: Solve for x
    x = 32,081.92/154.53
  6. Step 6: Final answer
    x = 207.61

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.