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Finding the Fourth Proportional to 547.18, 749.63 and 526.37

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Solution

The fourth proportional to 547.18, 749.63 and 526.37 is: 721.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    547.18 : 749.63 = 526.37 : x
  2. Step 2: Convert to fraction form
    547.18/749.63 = 526.37/x
  3. Step 3: Cross multiply
    547.18x = 749.63 × 526.37
  4. Step 4: Simplify right side
    547.18x = 394,581.99
  5. Step 5: Solve for x
    x = 394,581.99/547.18
  6. Step 6: Final answer
    x = 721.12

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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.