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Finding the Fourth Proportional to 221,227.20, 332,013.60 and 102,913.20

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Solution

The fourth proportional to 221,227.20, 332,013.60 and 102,913.20 is: 154,450.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,227.20 : 332,013.60 = 102,913.20 : x
  2. Step 2: Convert to fraction form
    221,227.20/332,013.60 = 102,913.20/x
  3. Step 3: Cross multiply
    221,227.20x = 332,013.60 × 102,913.20
  4. Step 4: Simplify right side
    221,227.20x = 34,168,582,019.52
  5. Step 5: Solve for x
    x = 34,168,582,019.52/221,227.20
  6. Step 6: Final answer
    x = 154,450.19

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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.