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Finding the Fourth Proportional to 404.83, 607.18 and 199.34

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Solution

The fourth proportional to 404.83, 607.18 and 199.34 is: 298.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    404.83 : 607.18 = 199.34 : x
  2. Step 2: Convert to fraction form
    404.83/607.18 = 199.34/x
  3. Step 3: Cross multiply
    404.83x = 607.18 × 199.34
  4. Step 4: Simplify right side
    404.83x = 121,035.26
  5. Step 5: Solve for x
    x = 121,035.26/404.83
  6. Step 6: Final answer
    x = 298.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.