Home / 251,426.30-346,939.20-143,989.92

Finding the Fourth Proportional to 251,426.30, 346,939.20 and 143,989.92

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Solution

The fourth proportional to 251,426.30, 346,939.20 and 143,989.92 is: 198,689.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,426.30 : 346,939.20 = 143,989.92 : x
  2. Step 2: Convert to fraction form
    251,426.30/346,939.20 = 143,989.92/x
  3. Step 3: Cross multiply
    251,426.30x = 346,939.20 × 143,989.92
  4. Step 4: Simplify right side
    251,426.30x = 49,955,747,652.86
  5. Step 5: Solve for x
    x = 49,955,747,652.86/251,426.30
  6. Step 6: Final answer
    x = 198,689.43

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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.