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Finding the Fourth Proportional to 453.12, 626.07 and 360.55

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Solution

The fourth proportional to 453.12, 626.07 and 360.55 is: 498.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    453.12 : 626.07 = 360.55 : x
  2. Step 2: Convert to fraction form
    453.12/626.07 = 360.55/x
  3. Step 3: Cross multiply
    453.12x = 626.07 × 360.55
  4. Step 4: Simplify right side
    453.12x = 225,729.14
  5. Step 5: Solve for x
    x = 225,729.14/453.12
  6. Step 6: Final answer
    x = 498.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.