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Finding the Fourth Proportional to 738.05, 1,106.15 and 372.94

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Solution

The fourth proportional to 738.05, 1,106.15 and 372.94 is: 558.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    738.05 : 1,106.15 = 372.94 : x
  2. Step 2: Convert to fraction form
    738.05/1,106.15 = 372.94/x
  3. Step 3: Cross multiply
    738.05x = 1,106.15 × 372.94
  4. Step 4: Simplify right side
    738.05x = 412,525.75
  5. Step 5: Solve for x
    x = 412,525.75/738.05
  6. Step 6: Final answer
    x = 558.94

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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.