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Finding the Fourth Proportional to 476.03, 657.37 and 450.15

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Solution

The fourth proportional to 476.03, 657.37 and 450.15 is: 621.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    476.03 : 657.37 = 450.15 : x
  2. Step 2: Convert to fraction form
    476.03/657.37 = 450.15/x
  3. Step 3: Cross multiply
    476.03x = 657.37 × 450.15
  4. Step 4: Simplify right side
    476.03x = 295,911.82
  5. Step 5: Solve for x
    x = 295,911.82/476.03
  6. Step 6: Final answer
    x = 621.62

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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.