Home / 389,430.24-585,235.92-231,683.04

Finding the Fourth Proportional to 389,430.24, 585,235.92 and 231,683.04

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Solution

The fourth proportional to 389,430.24, 585,235.92 and 231,683.04 is: 348,173.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,430.24 : 585,235.92 = 231,683.04 : x
  2. Step 2: Convert to fraction form
    389,430.24/585,235.92 = 231,683.04/x
  3. Step 3: Cross multiply
    389,430.24x = 585,235.92 × 231,683.04
  4. Step 4: Simplify right side
    389,430.24x = 135,589,237,062.80
  5. Step 5: Solve for x
    x = 135,589,237,062.80/389,430.24
  6. Step 6: Final answer
    x = 348,173.36

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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.