Home / 439,338.24-658,771.20-139,737.60

Finding the Fourth Proportional to 439,338.24, 658,771.20 and 139,737.60

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Solution

The fourth proportional to 439,338.24, 658,771.20 and 139,737.60 is: 209,531.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,338.24 : 658,771.20 = 139,737.60 : x
  2. Step 2: Convert to fraction form
    439,338.24/658,771.20 = 139,737.60/x
  3. Step 3: Cross multiply
    439,338.24x = 658,771.20 × 139,737.60
  4. Step 4: Simplify right side
    439,338.24x = 92,055,106,437.12
  5. Step 5: Solve for x
    x = 92,055,106,437.12/439,338.24
  6. Step 6: Final answer
    x = 209,531.29

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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.