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Finding the Fourth Proportional to 551.00, 826.50 and 487.22

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Solution

The fourth proportional to 551.00, 826.50 and 487.22 is: 730.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    551.00 : 826.50 = 487.22 : x
  2. Step 2: Convert to fraction form
    551.00/826.50 = 487.22/x
  3. Step 3: Cross multiply
    551.00x = 826.50 × 487.22
  4. Step 4: Simplify right side
    551.00x = 402,683.20
  5. Step 5: Solve for x
    x = 402,683.20/551.00
  6. Step 6: Final answer
    x = 730.83

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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.