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Finding the Fourth Proportional to 537.03, 805.76 and 263.09

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Solution

The fourth proportional to 537.03, 805.76 and 263.09 is: 394.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    537.03 : 805.76 = 263.09 : x
  2. Step 2: Convert to fraction form
    537.03/805.76 = 263.09/x
  3. Step 3: Cross multiply
    537.03x = 805.76 × 263.09
  4. Step 4: Simplify right side
    537.03x = 211,987.40
  5. Step 5: Solve for x
    x = 211,987.40/537.03
  6. Step 6: Final answer
    x = 394.74

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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.