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Finding the Fourth Proportional to 269.95, 404.76 and 148.18

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Solution

The fourth proportional to 269.95, 404.76 and 148.18 is: 222.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    269.95 : 404.76 = 148.18 : x
  2. Step 2: Convert to fraction form
    269.95/404.76 = 148.18/x
  3. Step 3: Cross multiply
    269.95x = 404.76 × 148.18
  4. Step 4: Simplify right side
    269.95x = 59,977.34
  5. Step 5: Solve for x
    x = 59,977.34/269.95
  6. Step 6: Final answer
    x = 222.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.