Home / 251,039.22-346,436.37-137,862.78

Finding the Fourth Proportional to 251,039.22, 346,436.37 and 137,862.78

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Solution

The fourth proportional to 251,039.22, 346,436.37 and 137,862.78 is: 190,251.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,039.22 : 346,436.37 = 137,862.78 : x
  2. Step 2: Convert to fraction form
    251,039.22/346,436.37 = 137,862.78/x
  3. Step 3: Cross multiply
    251,039.22x = 346,436.37 × 137,862.78
  4. Step 4: Simplify right side
    251,039.22x = 47,760,681,061.31
  5. Step 5: Solve for x
    x = 47,760,681,061.31/251,039.22
  6. Step 6: Final answer
    x = 190,251.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.