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Finding the Fourth Proportional to 251,214.60, 376,779.78 and 82,736.76

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Solution

The fourth proportional to 251,214.60, 376,779.78 and 82,736.76 is: 124,091.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,214.60 : 376,779.78 = 82,736.76 : x
  2. Step 2: Convert to fraction form
    251,214.60/376,779.78 = 82,736.76/x
  3. Step 3: Cross multiply
    251,214.60x = 376,779.78 × 82,736.76
  4. Step 4: Simplify right side
    251,214.60x = 31,173,538,230.71
  5. Step 5: Solve for x
    x = 31,173,538,230.71/251,214.60
  6. Step 6: Final answer
    x = 124,091.27

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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.