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Finding the Fourth Proportional to 492.21, 737.98 and 355.52

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Solution

The fourth proportional to 492.21, 737.98 and 355.52 is: 533.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    492.21 : 737.98 = 355.52 : x
  2. Step 2: Convert to fraction form
    492.21/737.98 = 355.52/x
  3. Step 3: Cross multiply
    492.21x = 737.98 × 355.52
  4. Step 4: Simplify right side
    492.21x = 262,367.61
  5. Step 5: Solve for x
    x = 262,367.61/492.21
  6. Step 6: Final answer
    x = 533.04

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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.