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Finding the Fourth Proportional to 551.36, 759.13 and 468.34

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Solution

The fourth proportional to 551.36, 759.13 and 468.34 is: 644.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    551.36 : 759.13 = 468.34 : x
  2. Step 2: Convert to fraction form
    551.36/759.13 = 468.34/x
  3. Step 3: Cross multiply
    551.36x = 759.13 × 468.34
  4. Step 4: Simplify right side
    551.36x = 355,527.88
  5. Step 5: Solve for x
    x = 355,527.88/551.36
  6. Step 6: Final answer
    x = 644.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.