Home / 499,022.88-748,581.42-139,217.64

Finding the Fourth Proportional to 499,022.88, 748,581.42 and 139,217.64

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Solution

The fourth proportional to 499,022.88, 748,581.42 and 139,217.64 is: 208,839.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,022.88 : 748,581.42 = 139,217.64 : x
  2. Step 2: Convert to fraction form
    499,022.88/748,581.42 = 139,217.64/x
  3. Step 3: Cross multiply
    499,022.88x = 748,581.42 × 139,217.64
  4. Step 4: Simplify right side
    499,022.88x = 104,215,738,640.25
  5. Step 5: Solve for x
    x = 104,215,738,640.25/499,022.88
  6. Step 6: Final answer
    x = 208,839.60

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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.