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Finding the Fourth Proportional to 251,281.44, 346,764.24 and 138,101.76

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Solution

The fourth proportional to 251,281.44, 346,764.24 and 138,101.76 is: 190,578.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,281.44 : 346,764.24 = 138,101.76 : x
  2. Step 2: Convert to fraction form
    251,281.44/346,764.24 = 138,101.76/x
  3. Step 3: Cross multiply
    251,281.44x = 346,764.24 × 138,101.76
  4. Step 4: Simplify right side
    251,281.44x = 47,888,751,849.06
  5. Step 5: Solve for x
    x = 47,888,751,849.06/251,281.44
  6. Step 6: Final answer
    x = 190,578.15

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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.