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Finding the Fourth Proportional to 537.12, 805.36 and 277.12

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Solution

The fourth proportional to 537.12, 805.36 and 277.12 is: 415.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    537.12 : 805.36 = 277.12 : x
  2. Step 2: Convert to fraction form
    537.12/805.36 = 277.12/x
  3. Step 3: Cross multiply
    537.12x = 805.36 × 277.12
  4. Step 4: Simplify right side
    537.12x = 223,181.36
  5. Step 5: Solve for x
    x = 223,181.36/537.12
  6. Step 6: Final answer
    x = 415.51

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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.