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Finding the Fourth Proportional to 464.93, 697.80 and 190.95

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Solution

The fourth proportional to 464.93, 697.80 and 190.95 is: 286.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    464.93 : 697.80 = 190.95 : x
  2. Step 2: Convert to fraction form
    464.93/697.80 = 190.95/x
  3. Step 3: Cross multiply
    464.93x = 697.80 × 190.95
  4. Step 4: Simplify right side
    464.93x = 133,244.91
  5. Step 5: Solve for x
    x = 133,244.91/464.93
  6. Step 6: Final answer
    x = 286.59

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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.