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Finding the Fourth Proportional to 251,276.91, 376,748.73 and 91,333.86

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Solution

The fourth proportional to 251,276.91, 376,748.73 and 91,333.86 is: 136,940.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,276.91 : 376,748.73 = 91,333.86 : x
  2. Step 2: Convert to fraction form
    251,276.91/376,748.73 = 91,333.86/x
  3. Step 3: Cross multiply
    251,276.91x = 376,748.73 × 91,333.86
  4. Step 4: Simplify right side
    251,276.91x = 34,409,915,761.00
  5. Step 5: Solve for x
    x = 34,409,915,761.00/251,276.91
  6. Step 6: Final answer
    x = 136,940.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.