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Finding the Fourth Proportional to 443,794.68, 665,232.75 and 218,854.44

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Solution

The fourth proportional to 443,794.68, 665,232.75 and 218,854.44 is: 328,055.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,794.68 : 665,232.75 = 218,854.44 : x
  2. Step 2: Convert to fraction form
    443,794.68/665,232.75 = 218,854.44/x
  3. Step 3: Cross multiply
    443,794.68x = 665,232.75 × 218,854.44
  4. Step 4: Simplify right side
    443,794.68x = 145,589,140,970.91
  5. Step 5: Solve for x
    x = 145,589,140,970.91/443,794.68
  6. Step 6: Final answer
    x = 328,055.17

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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.