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Finding the Fourth Proportional to 221,627.89, 332,441.82 and 55,415.89

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Solution

The fourth proportional to 221,627.89, 332,441.82 and 55,415.89 is: 83,123.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,627.89 : 332,441.82 = 55,415.89 : x
  2. Step 2: Convert to fraction form
    221,627.89/332,441.82 = 55,415.89/x
  3. Step 3: Cross multiply
    221,627.89x = 332,441.82 × 55,415.89
  4. Step 4: Simplify right side
    221,627.89x = 18,422,559,328.52
  5. Step 5: Solve for x
    x = 18,422,559,328.52/221,627.89
  6. Step 6: Final answer
    x = 83,123.83

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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.