Home / 352,207.02-485,990.91-231,396.78

Finding the Fourth Proportional to 352,207.02, 485,990.91 and 231,396.78

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Solution

The fourth proportional to 352,207.02, 485,990.91 and 231,396.78 is: 319,291.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,207.02 : 485,990.91 = 231,396.78 : x
  2. Step 2: Convert to fraction form
    352,207.02/485,990.91 = 231,396.78/x
  3. Step 3: Cross multiply
    352,207.02x = 485,990.91 × 231,396.78
  4. Step 4: Simplify right side
    352,207.02x = 112,456,731,683.27
  5. Step 5: Solve for x
    x = 112,456,731,683.27/352,207.02
  6. Step 6: Final answer
    x = 319,291.57

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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.