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Finding the Fourth Proportional to 251,998.75, 378,000.96 and 107,885.17

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Solution

The fourth proportional to 251,998.75, 378,000.96 and 107,885.17 is: 161,828.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,998.75 : 378,000.96 = 107,885.17 : x
  2. Step 2: Convert to fraction form
    251,998.75/378,000.96 = 107,885.17/x
  3. Step 3: Cross multiply
    251,998.75x = 378,000.96 × 107,885.17
  4. Step 4: Simplify right side
    251,998.75x = 40,780,697,829.76
  5. Step 5: Solve for x
    x = 40,780,697,829.76/251,998.75
  6. Step 6: Final answer
    x = 161,828.97

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1.5x scale

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.