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Finding the Fourth Proportional to 221,459.70, 332,238.15 and 71,706.90

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Solution

The fourth proportional to 221,459.70, 332,238.15 and 71,706.90 is: 107,576.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,459.70 : 332,238.15 = 71,706.90 : x
  2. Step 2: Convert to fraction form
    221,459.70/332,238.15 = 71,706.90/x
  3. Step 3: Cross multiply
    221,459.70x = 332,238.15 × 71,706.90
  4. Step 4: Simplify right side
    221,459.70x = 23,823,767,798.24
  5. Step 5: Solve for x
    x = 23,823,767,798.24/221,459.70
  6. Step 6: Final answer
    x = 107,576.09

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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.