Home / 439,199.82-658,865.21-139,690.17

Finding the Fourth Proportional to 439,199.82, 658,865.21 and 139,690.17

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Solution

The fourth proportional to 439,199.82, 658,865.21 and 139,690.17 is: 209,556.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,199.82 : 658,865.21 = 139,690.17 : x
  2. Step 2: Convert to fraction form
    439,199.82/658,865.21 = 139,690.17/x
  3. Step 3: Cross multiply
    439,199.82x = 658,865.21 × 139,690.17
  4. Step 4: Simplify right side
    439,199.82x = 92,036,992,493.53
  5. Step 5: Solve for x
    x = 92,036,992,493.53/439,199.82
  6. Step 6: Final answer
    x = 209,556.08

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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.