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Finding the Fourth Proportional to 154.23, 211.60 and 150.35

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Solution

The fourth proportional to 154.23, 211.60 and 150.35 is: 206.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    154.23 : 211.60 = 150.35 : x
  2. Step 2: Convert to fraction form
    154.23/211.60 = 150.35/x
  3. Step 3: Cross multiply
    154.23x = 211.60 × 150.35
  4. Step 4: Simplify right side
    154.23x = 31,813.19
  5. Step 5: Solve for x
    x = 31,813.19/154.23
  6. Step 6: Final answer
    x = 206.28

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.