Home / 439,340.24-658,774.20-139,739.60

Finding the Fourth Proportional to 439,340.24, 658,774.20 and 139,739.60

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Solution

The fourth proportional to 439,340.24, 658,774.20 and 139,739.60 is: 209,534.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,340.24 : 658,774.20 = 139,739.60 : x
  2. Step 2: Convert to fraction form
    439,340.24/658,774.20 = 139,739.60/x
  3. Step 3: Cross multiply
    439,340.24x = 658,774.20 × 139,739.60
  4. Step 4: Simplify right side
    439,340.24x = 92,056,843,198.32
  5. Step 5: Solve for x
    x = 92,056,843,198.32/439,340.24
  6. Step 6: Final answer
    x = 209,534.29

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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.