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Finding the Fourth Proportional to 251,458.56, 347,156.28 and 166,690.44

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Solution

The fourth proportional to 251,458.56, 347,156.28 and 166,690.44 is: 230,127.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,458.56 : 347,156.28 = 166,690.44 : x
  2. Step 2: Convert to fraction form
    251,458.56/347,156.28 = 166,690.44/x
  3. Step 3: Cross multiply
    251,458.56x = 347,156.28 × 166,690.44
  4. Step 4: Simplify right side
    251,458.56x = 57,867,633,061.96
  5. Step 5: Solve for x
    x = 57,867,633,061.96/251,458.56
  6. Step 6: Final answer
    x = 230,127.91

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1.5x scale

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.