Home / 251,919.27-347,622.89-155,107.76

Finding the Fourth Proportional to 251,919.27, 347,622.89 and 155,107.76

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Solution

The fourth proportional to 251,919.27, 347,622.89 and 155,107.76 is: 214,032.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,919.27 : 347,622.89 = 155,107.76 : x
  2. Step 2: Convert to fraction form
    251,919.27/347,622.89 = 155,107.76/x
  3. Step 3: Cross multiply
    251,919.27x = 347,622.89 × 155,107.76
  4. Step 4: Simplify right side
    251,919.27x = 53,919,005,278.97
  5. Step 5: Solve for x
    x = 53,919,005,278.97/251,919.27
  6. Step 6: Final answer
    x = 214,032.87

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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.