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Finding the Fourth Proportional to 251,672.70, 347,358.06 and 144,315.30

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Solution

The fourth proportional to 251,672.70, 347,358.06 and 144,315.30 is: 199,183.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,672.70 : 347,358.06 = 144,315.30 : x
  2. Step 2: Convert to fraction form
    251,672.70/347,358.06 = 144,315.30/x
  3. Step 3: Cross multiply
    251,672.70x = 347,358.06 × 144,315.30
  4. Step 4: Simplify right side
    251,672.70x = 50,129,082,636.32
  5. Step 5: Solve for x
    x = 50,129,082,636.32/251,672.70
  6. Step 6: Final answer
    x = 199,183.63

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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.