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Finding the Fourth Proportional to 277.02, 414.86 and 155.30

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Solution

The fourth proportional to 277.02, 414.86 and 155.30 is: 232.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    277.02 : 414.86 = 155.30 : x
  2. Step 2: Convert to fraction form
    277.02/414.86 = 155.30/x
  3. Step 3: Cross multiply
    277.02x = 414.86 × 155.30
  4. Step 4: Simplify right side
    277.02x = 64,424.91
  5. Step 5: Solve for x
    x = 64,424.91/277.02
  6. Step 6: Final answer
    x = 232.56

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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.