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Finding the Fourth Proportional to 199,610.70, 299,214.45 and 99,617.10

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Solution

The fourth proportional to 199,610.70, 299,214.45 and 99,617.10 is: 149,325.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,610.70 : 299,214.45 = 99,617.10 : x
  2. Step 2: Convert to fraction form
    199,610.70/299,214.45 = 99,617.10/x
  3. Step 3: Cross multiply
    199,610.70x = 299,214.45 × 99,617.10
  4. Step 4: Simplify right side
    199,610.70x = 29,806,875,787.10
  5. Step 5: Solve for x
    x = 29,806,875,787.10/199,610.70
  6. Step 6: Final answer
    x = 149,325.04

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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.