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Finding the Fourth Proportional to 604.25, 833.10 and 515.55

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Solution

The fourth proportional to 604.25, 833.10 and 515.55 is: 710.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    604.25 : 833.10 = 515.55 : x
  2. Step 2: Convert to fraction form
    604.25/833.10 = 515.55/x
  3. Step 3: Cross multiply
    604.25x = 833.10 × 515.55
  4. Step 4: Simplify right side
    604.25x = 429,504.71
  5. Step 5: Solve for x
    x = 429,504.71/604.25
  6. Step 6: Final answer
    x = 710.81

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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.