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Finding the Fourth Proportional to 269,429.70, 403,707.15 and 169,410.90

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Solution

The fourth proportional to 269,429.70, 403,707.15 and 169,410.90 is: 253,841.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,429.70 : 403,707.15 = 169,410.90 : x
  2. Step 2: Convert to fraction form
    269,429.70/403,707.15 = 169,410.90/x
  3. Step 3: Cross multiply
    269,429.70x = 403,707.15 × 169,410.90
  4. Step 4: Simplify right side
    269,429.70x = 68,392,391,617.94
  5. Step 5: Solve for x
    x = 68,392,391,617.94/269,429.70
  6. Step 6: Final answer
    x = 253,841.32

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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.