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Finding the Fourth Proportional to 221,552.50, 332,466.99 and 90,224.50

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Solution

The fourth proportional to 221,552.50, 332,466.99 and 90,224.50 is: 135,393.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,552.50 : 332,466.99 = 90,224.50 : x
  2. Step 2: Convert to fraction form
    221,552.50/332,466.99 = 90,224.50/x
  3. Step 3: Cross multiply
    221,552.50x = 332,466.99 × 90,224.50
  4. Step 4: Simplify right side
    221,552.50x = 29,996,667,939.26
  5. Step 5: Solve for x
    x = 29,996,667,939.26/221,552.50
  6. Step 6: Final answer
    x = 135,393.05

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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.