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Finding the Fourth Proportional to 445,252.32, 667,940.64 and 145,756.44

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Solution

The fourth proportional to 445,252.32, 667,940.64 and 145,756.44 is: 218,655.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,252.32 : 667,940.64 = 145,756.44 : x
  2. Step 2: Convert to fraction form
    445,252.32/667,940.64 = 145,756.44/x
  3. Step 3: Cross multiply
    445,252.32x = 667,940.64 × 145,756.44
  4. Step 4: Simplify right side
    445,252.32x = 97,356,649,817.72
  5. Step 5: Solve for x
    x = 97,356,649,817.72/445,252.32
  6. Step 6: Final answer
    x = 218,655.01

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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.