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Finding the Fourth Proportional to 221,901.40, 332,900.70 and 72,116.20

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Solution

The fourth proportional to 221,901.40, 332,900.70 and 72,116.20 is: 108,190.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,901.40 : 332,900.70 = 72,116.20 : x
  2. Step 2: Convert to fraction form
    221,901.40/332,900.70 = 72,116.20/x
  3. Step 3: Cross multiply
    221,901.40x = 332,900.70 × 72,116.20
  4. Step 4: Simplify right side
    221,901.40x = 24,007,533,461.34
  5. Step 5: Solve for x
    x = 24,007,533,461.34/221,901.40
  6. Step 6: Final answer
    x = 108,190.09

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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.