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Finding the Fourth Proportional to 616.51, 850.78 and 350.93

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Solution

The fourth proportional to 616.51, 850.78 and 350.93 is: 484.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    616.51 : 850.78 = 350.93 : x
  2. Step 2: Convert to fraction form
    616.51/850.78 = 350.93/x
  3. Step 3: Cross multiply
    616.51x = 850.78 × 350.93
  4. Step 4: Simplify right side
    616.51x = 298,564.23
  5. Step 5: Solve for x
    x = 298,564.23/616.51
  6. Step 6: Final answer
    x = 484.28

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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.