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Finding the Fourth Proportional to 197,812, 296,755.20 and 79,492.72

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Solution

The fourth proportional to 197,812, 296,755.20 and 79,492.72 is: 119,254.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,812 : 296,755.20 = 79,492.72 : x
  2. Step 2: Convert to fraction form
    197,812/296,755.20 = 79,492.72/x
  3. Step 3: Cross multiply
    197,812x = 296,755.20 × 79,492.72
  4. Step 4: Simplify right side
    197,812x = 23,589,878,022.14
  5. Step 5: Solve for x
    x = 23,589,878,022.14/197,812
  6. Step 6: Final answer
    x = 119,254.03

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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.