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Finding the Fourth Proportional to 251,648.87, 347,264.96 and 136,927.96

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Solution

The fourth proportional to 251,648.87, 347,264.96 and 136,927.96 is: 188,954.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,648.87 : 347,264.96 = 136,927.96 : x
  2. Step 2: Convert to fraction form
    251,648.87/347,264.96 = 136,927.96/x
  3. Step 3: Cross multiply
    251,648.87x = 347,264.96 × 136,927.96
  4. Step 4: Simplify right side
    251,648.87x = 47,550,280,999.48
  5. Step 5: Solve for x
    x = 47,550,280,999.48/251,648.87
  6. Step 6: Final answer
    x = 188,954.88

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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.