Home / 251,033.22-346,428.09-137,856.78

Finding the Fourth Proportional to 251,033.22, 346,428.09 and 137,856.78

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Solution

The fourth proportional to 251,033.22, 346,428.09 and 137,856.78 is: 190,243.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,033.22 : 346,428.09 = 137,856.78 : x
  2. Step 2: Convert to fraction form
    251,033.22/346,428.09 = 137,856.78/x
  3. Step 3: Cross multiply
    251,033.22x = 346,428.09 × 137,856.78
  4. Step 4: Simplify right side
    251,033.22x = 47,757,460,988.95
  5. Step 5: Solve for x
    x = 47,757,460,988.95/251,033.22
  6. Step 6: Final answer
    x = 190,243.59

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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.