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Finding the Fourth Proportional to 202,212.40, 303,172.80 and 132,131.20

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Solution

The fourth proportional to 202,212.40, 303,172.80 and 132,131.20 is: 198,101.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,212.40 : 303,172.80 = 132,131.20 : x
  2. Step 2: Convert to fraction form
    202,212.40/303,172.80 = 132,131.20/x
  3. Step 3: Cross multiply
    202,212.40x = 303,172.80 × 132,131.20
  4. Step 4: Simplify right side
    202,212.40x = 40,058,585,871.36
  5. Step 5: Solve for x
    x = 40,058,585,871.36/202,212.40
  6. Step 6: Final answer
    x = 198,101.53

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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.