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Finding the Fourth Proportional to 556.26, 763.04 and 551.40

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Solution

The fourth proportional to 556.26, 763.04 and 551.40 is: 756.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    556.26 : 763.04 = 551.40 : x
  2. Step 2: Convert to fraction form
    556.26/763.04 = 551.40/x
  3. Step 3: Cross multiply
    556.26x = 763.04 × 551.40
  4. Step 4: Simplify right side
    556.26x = 420,740.26
  5. Step 5: Solve for x
    x = 420,740.26/556.26
  6. Step 6: Final answer
    x = 756.37

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.