Home / 198,966.72-298,440.36-74,298

Finding the Fourth Proportional to 198,966.72, 298,440.36 and 74,298

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Solution

The fourth proportional to 198,966.72, 298,440.36 and 74,298 is: 111,443.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,966.72 : 298,440.36 = 74,298 : x
  2. Step 2: Convert to fraction form
    198,966.72/298,440.36 = 74,298/x
  3. Step 3: Cross multiply
    198,966.72x = 298,440.36 × 74,298
  4. Step 4: Simplify right side
    198,966.72x = 22,173,521,867.28
  5. Step 5: Solve for x
    x = 22,173,521,867.28/198,966.72
  6. Step 6: Final answer
    x = 111,443.37

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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.