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Finding the Fourth Proportional to 537.05, 744.89 and 515.18

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Solution

The fourth proportional to 537.05, 744.89 and 515.18 is: 714.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    537.05 : 744.89 = 515.18 : x
  2. Step 2: Convert to fraction form
    537.05/744.89 = 515.18/x
  3. Step 3: Cross multiply
    537.05x = 744.89 × 515.18
  4. Step 4: Simplify right side
    537.05x = 383,746.13
  5. Step 5: Solve for x
    x = 383,746.13/537.05
  6. Step 6: Final answer
    x = 714.55

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.