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Finding the Fourth Proportional to 404.79, 607 and 199.32

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Solution

The fourth proportional to 404.79, 607 and 199.32 is: 298.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    404.79 : 607 = 199.32 : x
  2. Step 2: Convert to fraction form
    404.79/607 = 199.32/x
  3. Step 3: Cross multiply
    404.79x = 607 × 199.32
  4. Step 4: Simplify right side
    404.79x = 120,987.24
  5. Step 5: Solve for x
    x = 120,987.24/404.79
  6. Step 6: Final answer
    x = 298.89

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