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Finding the Fourth Proportional to 450.80, 621.34 and 362.02

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Solution

The fourth proportional to 450.80, 621.34 and 362.02 is: 498.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    450.80 : 621.34 = 362.02 : x
  2. Step 2: Convert to fraction form
    450.80/621.34 = 362.02/x
  3. Step 3: Cross multiply
    450.80x = 621.34 × 362.02
  4. Step 4: Simplify right side
    450.80x = 224,937.51
  5. Step 5: Solve for x
    x = 224,937.51/450.80
  6. Step 6: Final answer
    x = 498.97

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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.