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Finding the Fourth Proportional to 551.14, 759.93 and 440.26

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Solution

The fourth proportional to 551.14, 759.93 and 440.26 is: 607.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    551.14 : 759.93 = 440.26 : x
  2. Step 2: Convert to fraction form
    551.14/759.93 = 440.26/x
  3. Step 3: Cross multiply
    551.14x = 759.93 × 440.26
  4. Step 4: Simplify right side
    551.14x = 334,566.78
  5. Step 5: Solve for x
    x = 334,566.78/551.14
  6. Step 6: Final answer
    x = 607.05

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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.