Home / 389,431.24-585,237.42-231,684.04

Finding the Fourth Proportional to 389,431.24, 585,237.42 and 231,684.04

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Solution

The fourth proportional to 389,431.24, 585,237.42 and 231,684.04 is: 348,174.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,431.24 : 585,237.42 = 231,684.04 : x
  2. Step 2: Convert to fraction form
    389,431.24/585,237.42 = 231,684.04/x
  3. Step 3: Cross multiply
    389,431.24x = 585,237.42 × 231,684.04
  4. Step 4: Simplify right side
    389,431.24x = 135,590,169,824.78
  5. Step 5: Solve for x
    x = 135,590,169,824.78/389,431.24
  6. Step 6: Final answer
    x = 348,174.87

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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.