Home / 398,864.48-598,121.44-149,371.52

Finding the Fourth Proportional to 398,864.48, 598,121.44 and 149,371.52

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Solution

The fourth proportional to 398,864.48, 598,121.44 and 149,371.52 is: 223,991.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,864.48 : 598,121.44 = 149,371.52 : x
  2. Step 2: Convert to fraction form
    398,864.48/598,121.44 = 149,371.52/x
  3. Step 3: Cross multiply
    398,864.48x = 598,121.44 × 149,371.52
  4. Step 4: Simplify right side
    398,864.48x = 89,342,308,637.39
  5. Step 5: Solve for x
    x = 89,342,308,637.39/398,864.48
  6. Step 6: Final answer
    x = 223,991.64

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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.