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Finding the Fourth Proportional to 160.48, 221.84 and 154.08

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Solution

The fourth proportional to 160.48, 221.84 and 154.08 is: 212.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    160.48 : 221.84 = 154.08 : x
  2. Step 2: Convert to fraction form
    160.48/221.84 = 154.08/x
  3. Step 3: Cross multiply
    160.48x = 221.84 × 154.08
  4. Step 4: Simplify right side
    160.48x = 34,181.11
  5. Step 5: Solve for x
    x = 34,181.11/160.48
  6. Step 6: Final answer
    x = 212.99

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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.