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Finding the Fourth Proportional to 221,689.20, 332,533.80 and 133,042.80

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Solution

The fourth proportional to 221,689.20, 332,533.80 and 133,042.80 is: 199,564.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,689.20 : 332,533.80 = 133,042.80 : x
  2. Step 2: Convert to fraction form
    221,689.20/332,533.80 = 133,042.80/x
  3. Step 3: Cross multiply
    221,689.20x = 332,533.80 × 133,042.80
  4. Step 4: Simplify right side
    221,689.20x = 44,241,227,846.64
  5. Step 5: Solve for x
    x = 44,241,227,846.64/221,689.20
  6. Step 6: Final answer
    x = 199,564.20

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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.