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Finding the Fourth Proportional to 657.99, 908.07 and 363.30

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Solution

The fourth proportional to 657.99, 908.07 and 363.30 is: 501.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    657.99 : 908.07 = 363.30 : x
  2. Step 2: Convert to fraction form
    657.99/908.07 = 363.30/x
  3. Step 3: Cross multiply
    657.99x = 908.07 × 363.30
  4. Step 4: Simplify right side
    657.99x = 329,901.83
  5. Step 5: Solve for x
    x = 329,901.83/657.99
  6. Step 6: Final answer
    x = 501.38

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1.5x scale

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.