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Finding the Fourth Proportional to 553.08, 758.76 and 540.84

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Solution

The fourth proportional to 553.08, 758.76 and 540.84 is: 741.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    553.08 : 758.76 = 540.84 : x
  2. Step 2: Convert to fraction form
    553.08/758.76 = 540.84/x
  3. Step 3: Cross multiply
    553.08x = 758.76 × 540.84
  4. Step 4: Simplify right side
    553.08x = 410,367.76
  5. Step 5: Solve for x
    x = 410,367.76/553.08
  6. Step 6: Final answer
    x = 741.97

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.