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Finding the Fourth Proportional to 220,629, 330,525.54 and 130,401.48

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Solution

The fourth proportional to 220,629, 330,525.54 and 130,401.48 is: 195,355.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,629 : 330,525.54 = 130,401.48 : x
  2. Step 2: Convert to fraction form
    220,629/330,525.54 = 130,401.48/x
  3. Step 3: Cross multiply
    220,629x = 330,525.54 × 130,401.48
  4. Step 4: Simplify right side
    220,629x = 43,101,019,593.80
  5. Step 5: Solve for x
    x = 43,101,019,593.80/220,629
  6. Step 6: Final answer
    x = 195,355.19

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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.