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Finding the Fourth Proportional to 198,637.20, 297,955.80 and 98,812.80

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Solution

The fourth proportional to 198,637.20, 297,955.80 and 98,812.80 is: 148,219.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,637.20 : 297,955.80 = 98,812.80 : x
  2. Step 2: Convert to fraction form
    198,637.20/297,955.80 = 98,812.80/x
  3. Step 3: Cross multiply
    198,637.20x = 297,955.80 × 98,812.80
  4. Step 4: Simplify right side
    198,637.20x = 29,441,846,874.24
  5. Step 5: Solve for x
    x = 29,441,846,874.24/198,637.20
  6. Step 6: Final answer
    x = 148,219.20

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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.