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Finding the Fourth Proportional to 251,010.28, 346,398.42 and 137,843.56

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Solution

The fourth proportional to 251,010.28, 346,398.42 and 137,843.56 is: 190,226.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,010.28 : 346,398.42 = 137,843.56 : x
  2. Step 2: Convert to fraction form
    251,010.28/346,398.42 = 137,843.56/x
  3. Step 3: Cross multiply
    251,010.28x = 346,398.42 × 137,843.56
  4. Step 4: Simplify right side
    251,010.28x = 47,748,791,391.18
  5. Step 5: Solve for x
    x = 47,748,791,391.18/251,010.28
  6. Step 6: Final answer
    x = 190,226.44

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1.5x scale

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.