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Finding the Fourth Proportional to 198,304.80, 296,938.80 and 127,802.40

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Solution

The fourth proportional to 198,304.80, 296,938.80 and 127,802.40 is: 191,369.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,304.80 : 296,938.80 = 127,802.40 : x
  2. Step 2: Convert to fraction form
    198,304.80/296,938.80 = 127,802.40/x
  3. Step 3: Cross multiply
    198,304.80x = 296,938.80 × 127,802.40
  4. Step 4: Simplify right side
    198,304.80x = 37,949,491,293.12
  5. Step 5: Solve for x
    x = 37,949,491,293.12/198,304.80
  6. Step 6: Final answer
    x = 191,369.50

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1.5x scale

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.