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Finding the Fourth Proportional to 259,400.98, 389,176.65 and 107,569.82

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Solution

The fourth proportional to 259,400.98, 389,176.65 and 107,569.82 is: 161,385.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,400.98 : 389,176.65 = 107,569.82 : x
  2. Step 2: Convert to fraction form
    259,400.98/389,176.65 = 107,569.82/x
  3. Step 3: Cross multiply
    259,400.98x = 389,176.65 × 107,569.82
  4. Step 4: Simplify right side
    259,400.98x = 41,863,663,161.64
  5. Step 5: Solve for x
    x = 41,863,663,161.64/259,400.98
  6. Step 6: Final answer
    x = 161,385.91

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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.