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Finding the Fourth Proportional to 251,628.85, 347,245.14 and 136,910.98

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Solution

The fourth proportional to 251,628.85, 347,245.14 and 136,910.98 is: 188,935.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,628.85 : 347,245.14 = 136,910.98 : x
  2. Step 2: Convert to fraction form
    251,628.85/347,245.14 = 136,910.98/x
  3. Step 3: Cross multiply
    251,628.85x = 347,245.14 × 136,910.98
  4. Step 4: Simplify right side
    251,628.85x = 47,541,672,417.64
  5. Step 5: Solve for x
    x = 47,541,672,417.64/251,628.85
  6. Step 6: Final answer
    x = 188,935.70

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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.