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Finding the Fourth Proportional to 251,255.88, 346,746.39 and 142,381.33

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Solution

The fourth proportional to 251,255.88, 346,746.39 and 142,381.33 is: 196,493.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,255.88 : 346,746.39 = 142,381.33 : x
  2. Step 2: Convert to fraction form
    251,255.88/346,746.39 = 142,381.33/x
  3. Step 3: Cross multiply
    251,255.88x = 346,746.39 × 142,381.33
  4. Step 4: Simplify right side
    251,255.88x = 49,370,212,180.90
  5. Step 5: Solve for x
    x = 49,370,212,180.90/251,255.88
  6. Step 6: Final answer
    x = 196,493.76

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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.