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Finding the Fourth Proportional to 259,876.80, 389,894.40 and 110,039.04

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Solution

The fourth proportional to 259,876.80, 389,894.40 and 110,039.04 is: 165,092.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,876.80 : 389,894.40 = 110,039.04 : x
  2. Step 2: Convert to fraction form
    259,876.80/389,894.40 = 110,039.04/x
  3. Step 3: Cross multiply
    259,876.80x = 389,894.40 × 110,039.04
  4. Step 4: Simplify right side
    259,876.80x = 42,903,605,477.38
  5. Step 5: Solve for x
    x = 42,903,605,477.38/259,876.80
  6. Step 6: Final answer
    x = 165,092.10

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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.