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Finding the Fourth Proportional to 737.17, 1,106.43 and 372.21

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Solution

The fourth proportional to 737.17, 1,106.43 and 372.21 is: 558.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    737.17 : 1,106.43 = 372.21 : x
  2. Step 2: Convert to fraction form
    737.17/1,106.43 = 372.21/x
  3. Step 3: Cross multiply
    737.17x = 1,106.43 × 372.21
  4. Step 4: Simplify right side
    737.17x = 411,828.13
  5. Step 5: Solve for x
    x = 411,828.13/737.17
  6. Step 6: Final answer
    x = 558.66

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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.