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Finding the Fourth Proportional to 451,154, 676,776.72 and 166,919.60

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Solution

The fourth proportional to 451,154, 676,776.72 and 166,919.60 is: 250,396.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,154 : 676,776.72 = 166,919.60 : x
  2. Step 2: Convert to fraction form
    451,154/676,776.72 = 166,919.60/x
  3. Step 3: Cross multiply
    451,154x = 676,776.72 × 166,919.60
  4. Step 4: Simplify right side
    451,154x = 112,967,299,391.71
  5. Step 5: Solve for x
    x = 112,967,299,391.71/451,154
  6. Step 6: Final answer
    x = 250,396.32

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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.