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Finding the Fourth Proportional to 537.09, 805.59 and 276.95

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Solution

The fourth proportional to 537.09, 805.59 and 276.95 is: 415.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    537.09 : 805.59 = 276.95 : x
  2. Step 2: Convert to fraction form
    537.09/805.59 = 276.95/x
  3. Step 3: Cross multiply
    537.09x = 805.59 × 276.95
  4. Step 4: Simplify right side
    537.09x = 223,108.15
  5. Step 5: Solve for x
    x = 223,108.15/537.09
  6. Step 6: Final answer
    x = 415.40

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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.