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Finding the Fourth Proportional to 251,315.92, 346,866.40 and 149,321.76

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Solution

The fourth proportional to 251,315.92, 346,866.40 and 149,321.76 is: 206,093.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,315.92 : 346,866.40 = 149,321.76 : x
  2. Step 2: Convert to fraction form
    251,315.92/346,866.40 = 149,321.76/x
  3. Step 3: Cross multiply
    251,315.92x = 346,866.40 × 149,321.76
  4. Step 4: Simplify right side
    251,315.92x = 51,794,701,332.86
  5. Step 5: Solve for x
    x = 51,794,701,332.86/251,315.92
  6. Step 6: Final answer
    x = 206,093.99

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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.