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Finding the Fourth Proportional to 251,388.83, 347,028.42 and 149,447.30

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Solution

The fourth proportional to 251,388.83, 347,028.42 and 149,447.30 is: 206,303.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,388.83 : 347,028.42 = 149,447.30 : x
  2. Step 2: Convert to fraction form
    251,388.83/347,028.42 = 149,447.30/x
  3. Step 3: Cross multiply
    251,388.83x = 347,028.42 × 149,447.30
  4. Step 4: Simplify right side
    251,388.83x = 51,862,460,392.27
  5. Step 5: Solve for x
    x = 51,862,460,392.27/251,388.83
  6. Step 6: Final answer
    x = 206,303.76

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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.