Home / 259,617.15-389,465.82-109,858.28

Finding the Fourth Proportional to 259,617.15, 389,465.82 and 109,858.28

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Solution

The fourth proportional to 259,617.15, 389,465.82 and 109,858.28 is: 164,804.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,617.15 : 389,465.82 = 109,858.28 : x
  2. Step 2: Convert to fraction form
    259,617.15/389,465.82 = 109,858.28/x
  3. Step 3: Cross multiply
    259,617.15x = 389,465.82 × 109,858.28
  4. Step 4: Simplify right side
    259,617.15x = 42,786,043,156.66
  5. Step 5: Solve for x
    x = 42,786,043,156.66/259,617.15
  6. Step 6: Final answer
    x = 164,804.38

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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.