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Finding the Fourth Proportional to 548.83, 761.28 and 529.13

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Solution

The fourth proportional to 548.83, 761.28 and 529.13 is: 733.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    548.83 : 761.28 = 529.13 : x
  2. Step 2: Convert to fraction form
    548.83/761.28 = 529.13/x
  3. Step 3: Cross multiply
    548.83x = 761.28 × 529.13
  4. Step 4: Simplify right side
    548.83x = 402,813.44
  5. Step 5: Solve for x
    x = 402,813.44/548.83
  6. Step 6: Final answer
    x = 733.95

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.