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Finding the Fourth Proportional to 259,473.06, 389,237.29 and 109,728.49

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Solution

The fourth proportional to 259,473.06, 389,237.29 and 109,728.49 is: 164,604.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,473.06 : 389,237.29 = 109,728.49 : x
  2. Step 2: Convert to fraction form
    259,473.06/389,237.29 = 109,728.49/x
  3. Step 3: Cross multiply
    259,473.06x = 389,237.29 × 109,728.49
  4. Step 4: Simplify right side
    259,473.06x = 42,710,418,835.98
  5. Step 5: Solve for x
    x = 42,710,418,835.98/259,473.06
  6. Step 6: Final answer
    x = 164,604.44

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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.