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Finding the Fourth Proportional to 737.60, 1,106.20 and 372.60

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Solution

The fourth proportional to 737.60, 1,106.20 and 372.60 is: 558.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    737.60 : 1,106.20 = 372.60 : x
  2. Step 2: Convert to fraction form
    737.60/1,106.20 = 372.60/x
  3. Step 3: Cross multiply
    737.60x = 1,106.20 × 372.60
  4. Step 4: Simplify right side
    737.60x = 412,170.12
  5. Step 5: Solve for x
    x = 412,170.12/737.60
  6. Step 6: Final answer
    x = 558.80

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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.