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Finding the Fourth Proportional to 202,395.20, 303,398.40 and 157,391.60

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Solution

The fourth proportional to 202,395.20, 303,398.40 and 157,391.60 is: 235,936.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,395.20 : 303,398.40 = 157,391.60 : x
  2. Step 2: Convert to fraction form
    202,395.20/303,398.40 = 157,391.60/x
  3. Step 3: Cross multiply
    202,395.20x = 303,398.40 × 157,391.60
  4. Step 4: Simplify right side
    202,395.20x = 47,752,359,613.44
  5. Step 5: Solve for x
    x = 47,752,359,613.44/202,395.20
  6. Step 6: Final answer
    x = 235,936.23

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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.