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Finding the Fourth Proportional to 221,811.62, 332,889.95 and 154,816.52

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Solution

The fourth proportional to 221,811.62, 332,889.95 and 154,816.52 is: 232,345.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,811.62 : 332,889.95 = 154,816.52 : x
  2. Step 2: Convert to fraction form
    221,811.62/332,889.95 = 154,816.52/x
  3. Step 3: Cross multiply
    221,811.62x = 332,889.95 × 154,816.52
  4. Step 4: Simplify right side
    221,811.62x = 51,536,862,324.57
  5. Step 5: Solve for x
    x = 51,536,862,324.57/221,811.62
  6. Step 6: Final answer
    x = 232,345.19

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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.