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Finding the Fourth Proportional to 221,343.03, 305,453.03 and 120,741.03

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Solution

The fourth proportional to 221,343.03, 305,453.03 and 120,741.03 is: 166,622.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,343.03 : 305,453.03 = 120,741.03 : x
  2. Step 2: Convert to fraction form
    221,343.03/305,453.03 = 120,741.03/x
  3. Step 3: Cross multiply
    221,343.03x = 305,453.03 × 120,741.03
  4. Step 4: Simplify right side
    221,343.03x = 36,880,712,855.12
  5. Step 5: Solve for x
    x = 36,880,712,855.12/221,343.03
  6. Step 6: Final answer
    x = 166,622.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.