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Finding the Fourth Proportional to 307,166.92, 423,796.42 and 178,079.63

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Solution

The fourth proportional to 307,166.92, 423,796.42 and 178,079.63 is: 245,695.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,166.92 : 423,796.42 = 178,079.63 : x
  2. Step 2: Convert to fraction form
    307,166.92/423,796.42 = 178,079.63/x
  3. Step 3: Cross multiply
    307,166.92x = 423,796.42 × 178,079.63
  4. Step 4: Simplify right side
    307,166.92x = 75,469,511,193.01
  5. Step 5: Solve for x
    x = 75,469,511,193.01/307,166.92
  6. Step 6: Final answer
    x = 245,695.44

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1.5x scale

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.