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Finding the Fourth Proportional to 221,621.76, 332,384.04 and 63,816

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Solution

The fourth proportional to 221,621.76, 332,384.04 and 63,816 is: 95,710.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,621.76 : 332,384.04 = 63,816 : x
  2. Step 2: Convert to fraction form
    221,621.76/332,384.04 = 63,816/x
  3. Step 3: Cross multiply
    221,621.76x = 332,384.04 × 63,816
  4. Step 4: Simplify right side
    221,621.76x = 21,211,419,896.64
  5. Step 5: Solve for x
    x = 21,211,419,896.64/221,621.76
  6. Step 6: Final answer
    x = 95,710.01

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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.