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Finding the Fourth Proportional to 445,064, 667,679.70 and 178,845.62

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Solution

The fourth proportional to 445,064, 667,679.70 and 178,845.62 is: 268,302.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,064 : 667,679.70 = 178,845.62 : x
  2. Step 2: Convert to fraction form
    445,064/667,679.70 = 178,845.62/x
  3. Step 3: Cross multiply
    445,064x = 667,679.70 × 178,845.62
  4. Step 4: Simplify right side
    445,064x = 119,411,589,907.91
  5. Step 5: Solve for x
    x = 119,411,589,907.91/445,064
  6. Step 6: Final answer
    x = 268,302.06

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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.