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Finding the Fourth Proportional to 197,375.40, 296,179.80 and 72,803.88

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Solution

The fourth proportional to 197,375.40, 296,179.80 and 72,803.88 is: 109,248.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,375.40 : 296,179.80 = 72,803.88 : x
  2. Step 2: Convert to fraction form
    197,375.40/296,179.80 = 72,803.88/x
  3. Step 3: Cross multiply
    197,375.40x = 296,179.80 × 72,803.88
  4. Step 4: Simplify right side
    197,375.40x = 21,563,038,617.62
  5. Step 5: Solve for x
    x = 21,563,038,617.62/197,375.40
  6. Step 6: Final answer
    x = 109,248.87

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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.