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Finding the Fourth Proportional to 914.22, 1,372.02 and 366.45

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Solution

The fourth proportional to 914.22, 1,372.02 and 366.45 is: 549.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    914.22 : 1,372.02 = 366.45 : x
  2. Step 2: Convert to fraction form
    914.22/1,372.02 = 366.45/x
  3. Step 3: Cross multiply
    914.22x = 1,372.02 × 366.45
  4. Step 4: Simplify right side
    914.22x = 502,776.73
  5. Step 5: Solve for x
    x = 502,776.73/914.22
  6. Step 6: Final answer
    x = 549.95

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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.