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Finding the Fourth Proportional to 221,573.40, 332,360.10 and 133,099.80

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Solution

The fourth proportional to 221,573.40, 332,360.10 and 133,099.80 is: 199,649.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,573.40 : 332,360.10 = 133,099.80 : x
  2. Step 2: Convert to fraction form
    221,573.40/332,360.10 = 133,099.80/x
  3. Step 3: Cross multiply
    221,573.40x = 332,360.10 × 133,099.80
  4. Step 4: Simplify right side
    221,573.40x = 44,237,062,837.98
  5. Step 5: Solve for x
    x = 44,237,062,837.98/221,573.40
  6. Step 6: Final answer
    x = 199,649.70

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1.5x scale

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.