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Finding the Fourth Proportional to 407,383.30, 611,110.50 and 167,511.79

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Solution

The fourth proportional to 407,383.30, 611,110.50 and 167,511.79 is: 251,282.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,383.30 : 611,110.50 = 167,511.79 : x
  2. Step 2: Convert to fraction form
    407,383.30/611,110.50 = 167,511.79/x
  3. Step 3: Cross multiply
    407,383.30x = 611,110.50 × 167,511.79
  4. Step 4: Simplify right side
    407,383.30x = 102,368,213,742.80
  5. Step 5: Solve for x
    x = 102,368,213,742.80/407,383.30
  6. Step 6: Final answer
    x = 251,282.30

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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.