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Finding the Fourth Proportional to 221,809.68, 332,615.70 and 64,000.64

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Solution

The fourth proportional to 221,809.68, 332,615.70 and 64,000.64 is: 95,972.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,809.68 : 332,615.70 = 64,000.64 : x
  2. Step 2: Convert to fraction form
    221,809.68/332,615.70 = 64,000.64/x
  3. Step 3: Cross multiply
    221,809.68x = 332,615.70 × 64,000.64
  4. Step 4: Simplify right side
    221,809.68x = 21,287,617,674.05
  5. Step 5: Solve for x
    x = 21,287,617,674.05/221,809.68
  6. Step 6: Final answer
    x = 95,972.45

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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.