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Finding the Fourth Proportional to 662.01, 913.82 and 400.02

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Solution

The fourth proportional to 662.01, 913.82 and 400.02 is: 552.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    662.01 : 913.82 = 400.02 : x
  2. Step 2: Convert to fraction form
    662.01/913.82 = 400.02/x
  3. Step 3: Cross multiply
    662.01x = 913.82 × 400.02
  4. Step 4: Simplify right side
    662.01x = 365,544.28
  5. Step 5: Solve for x
    x = 365,544.28/662.01
  6. Step 6: Final answer
    x = 552.17

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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.