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Finding the Fourth Proportional to 616.49, 850.29 and 429.98

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Solution

The fourth proportional to 616.49, 850.29 and 429.98 is: 593.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    616.49 : 850.29 = 429.98 : x
  2. Step 2: Convert to fraction form
    616.49/850.29 = 429.98/x
  3. Step 3: Cross multiply
    616.49x = 850.29 × 429.98
  4. Step 4: Simplify right side
    616.49x = 365,607.69
  5. Step 5: Solve for x
    x = 365,607.69/616.49
  6. Step 6: Final answer
    x = 593.05

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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.