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Finding the Fourth Proportional to 616.04, 850.13 and 394.98

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Solution

The fourth proportional to 616.04, 850.13 and 394.98 is: 545.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    616.04 : 850.13 = 394.98 : x
  2. Step 2: Convert to fraction form
    616.04/850.13 = 394.98/x
  3. Step 3: Cross multiply
    616.04x = 850.13 × 394.98
  4. Step 4: Simplify right side
    616.04x = 335,780.67
  5. Step 5: Solve for x
    x = 335,780.67/616.04
  6. Step 6: Final answer
    x = 545.06

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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.