Home / 388,377.79-582,624.09-198,945.32

Finding the Fourth Proportional to 388,377.79, 582,624.09 and 198,945.32

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Solution

The fourth proportional to 388,377.79, 582,624.09 and 198,945.32 is: 298,447.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,377.79 : 582,624.09 = 198,945.32 : x
  2. Step 2: Convert to fraction form
    388,377.79/582,624.09 = 198,945.32/x
  3. Step 3: Cross multiply
    388,377.79x = 582,624.09 × 198,945.32
  4. Step 4: Simplify right side
    388,377.79x = 115,910,333,111.64
  5. Step 5: Solve for x
    x = 115,910,333,111.64/388,377.79
  6. Step 6: Final answer
    x = 298,447.38

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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.