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Finding the Fourth Proportional to 251,355.86, 346,832.40 and 149,343.56

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Solution

The fourth proportional to 251,355.86, 346,832.40 and 149,343.56 is: 206,071.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,355.86 : 346,832.40 = 149,343.56 : x
  2. Step 2: Convert to fraction form
    251,355.86/346,832.40 = 149,343.56/x
  3. Step 3: Cross multiply
    251,355.86x = 346,832.40 × 149,343.56
  4. Step 4: Simplify right side
    251,355.86x = 51,797,185,339.34
  5. Step 5: Solve for x
    x = 51,797,185,339.34/251,355.86
  6. Step 6: Final answer
    x = 206,071.13

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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.