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Finding the Fourth Proportional to 557.17, 835.95 and 403.27

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Solution

The fourth proportional to 557.17, 835.95 and 403.27 is: 605.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    557.17 : 835.95 = 403.27 : x
  2. Step 2: Convert to fraction form
    557.17/835.95 = 403.27/x
  3. Step 3: Cross multiply
    557.17x = 835.95 × 403.27
  4. Step 4: Simplify right side
    557.17x = 337,113.56
  5. Step 5: Solve for x
    x = 337,113.56/557.17
  6. Step 6: Final answer
    x = 605.05

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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.