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Finding the Fourth Proportional to 269,969.70, 405,003.15 and 112,214.10

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Solution

The fourth proportional to 269,969.70, 405,003.15 and 112,214.10 is: 168,341.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,969.70 : 405,003.15 = 112,214.10 : x
  2. Step 2: Convert to fraction form
    269,969.70/405,003.15 = 112,214.10/x
  3. Step 3: Cross multiply
    269,969.70x = 405,003.15 × 112,214.10
  4. Step 4: Simplify right side
    269,969.70x = 45,447,063,974.42
  5. Step 5: Solve for x
    x = 45,447,063,974.42/269,969.70
  6. Step 6: Final answer
    x = 168,341.35

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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.