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Finding the Fourth Proportional to 221,103.81, 331,598.34 and 63,295.43

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Solution

The fourth proportional to 221,103.81, 331,598.34 and 63,295.43 is: 94,926.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,103.81 : 331,598.34 = 63,295.43 : x
  2. Step 2: Convert to fraction form
    221,103.81/331,598.34 = 63,295.43/x
  3. Step 3: Cross multiply
    221,103.81x = 331,598.34 × 63,295.43
  4. Step 4: Simplify right side
    221,103.81x = 20,988,657,859.59
  5. Step 5: Solve for x
    x = 20,988,657,859.59/221,103.81
  6. Step 6: Final answer
    x = 94,926.71

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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.