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Finding the Fourth Proportional to 1,467.21, 2,200.91 and 542.74

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Solution

The fourth proportional to 1,467.21, 2,200.91 and 542.74 is: 814.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,467.21 : 2,200.91 = 542.74 : x
  2. Step 2: Convert to fraction form
    1,467.21/2,200.91 = 542.74/x
  3. Step 3: Cross multiply
    1,467.21x = 2,200.91 × 542.74
  4. Step 4: Simplify right side
    1,467.21x = 1,194,519.18
  5. Step 5: Solve for x
    x = 1,194,519.18/1,467.21
  6. Step 6: Final answer
    x = 814.15

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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.