Home / 398,939.58-598,094.28-199,149.84

Finding the Fourth Proportional to 398,939.58, 598,094.28 and 199,149.84

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Solution

The fourth proportional to 398,939.58, 598,094.28 and 199,149.84 is: 298,567.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,939.58 : 598,094.28 = 199,149.84 : x
  2. Step 2: Convert to fraction form
    398,939.58/598,094.28 = 199,149.84/x
  3. Step 3: Cross multiply
    398,939.58x = 598,094.28 × 199,149.84
  4. Step 4: Simplify right side
    398,939.58x = 119,110,380,166.92
  5. Step 5: Solve for x
    x = 119,110,380,166.92/398,939.58
  6. Step 6: Final answer
    x = 298,567.47

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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.