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Finding the Fourth Proportional to 221,890.98, 332,853.48 and 64,120.80

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Solution

The fourth proportional to 221,890.98, 332,853.48 and 64,120.80 is: 96,186.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,890.98 : 332,853.48 = 64,120.80 : x
  2. Step 2: Convert to fraction form
    221,890.98/332,853.48 = 64,120.80/x
  3. Step 3: Cross multiply
    221,890.98x = 332,853.48 × 64,120.80
  4. Step 4: Simplify right side
    221,890.98x = 21,342,831,420.38
  5. Step 5: Solve for x
    x = 21,342,831,420.38/221,890.98
  6. Step 6: Final answer
    x = 96,186.12

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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.