Home / 221,411.42-332,122.20-79,266.41

Finding the Fourth Proportional to 221,411.42, 332,122.20 and 79,266.41

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Solution

The fourth proportional to 221,411.42, 332,122.20 and 79,266.41 is: 118,901.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,411.42 : 332,122.20 = 79,266.41 : x
  2. Step 2: Convert to fraction form
    221,411.42/332,122.20 = 79,266.41/x
  3. Step 3: Cross multiply
    221,411.42x = 332,122.20 × 79,266.41
  4. Step 4: Simplify right side
    221,411.42x = 26,326,134,475.30
  5. Step 5: Solve for x
    x = 26,326,134,475.30/221,411.42
  6. Step 6: Final answer
    x = 118,901.43

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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.