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Finding the Fourth Proportional to 464.99, 697.32 and 156.75

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Solution

The fourth proportional to 464.99, 697.32 and 156.75 is: 235.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    464.99 : 697.32 = 156.75 : x
  2. Step 2: Convert to fraction form
    464.99/697.32 = 156.75/x
  3. Step 3: Cross multiply
    464.99x = 697.32 × 156.75
  4. Step 4: Simplify right side
    464.99x = 109,304.91
  5. Step 5: Solve for x
    x = 109,304.91/464.99
  6. Step 6: Final answer
    x = 235.07

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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.