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Finding the Fourth Proportional to 464.85, 697.79 and 270.07

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Solution

The fourth proportional to 464.85, 697.79 and 270.07 is: 405.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    464.85 : 697.79 = 270.07 : x
  2. Step 2: Convert to fraction form
    464.85/697.79 = 270.07/x
  3. Step 3: Cross multiply
    464.85x = 697.79 × 270.07
  4. Step 4: Simplify right side
    464.85x = 188,452.15
  5. Step 5: Solve for x
    x = 188,452.15/464.85
  6. Step 6: Final answer
    x = 405.40

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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.