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Finding the Fourth Proportional to 251,010.53, 346,398.77 and 137,843.81

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Solution

The fourth proportional to 251,010.53, 346,398.77 and 137,843.81 is: 190,226.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,010.53 : 346,398.77 = 137,843.81 : x
  2. Step 2: Convert to fraction form
    251,010.53/346,398.77 = 137,843.81/x
  3. Step 3: Cross multiply
    251,010.53x = 346,398.77 × 137,843.81
  4. Step 4: Simplify right side
    251,010.53x = 47,748,925,546.89
  5. Step 5: Solve for x
    x = 47,748,925,546.89/251,010.53
  6. Step 6: Final answer
    x = 190,226.78

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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.