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Finding the Fourth Proportional to 277.95, 417.17 and 148.06

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Solution

The fourth proportional to 277.95, 417.17 and 148.06 is: 222.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    277.95 : 417.17 = 148.06 : x
  2. Step 2: Convert to fraction form
    277.95/417.17 = 148.06/x
  3. Step 3: Cross multiply
    277.95x = 417.17 × 148.06
  4. Step 4: Simplify right side
    277.95x = 61,765.80
  5. Step 5: Solve for x
    x = 61,765.80/277.95
  6. Step 6: Final answer
    x = 222.22

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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.