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Finding the Fourth Proportional to 202,614.40, 303,921.60 and 90,348.40

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Solution

The fourth proportional to 202,614.40, 303,921.60 and 90,348.40 is: 135,522.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,614.40 : 303,921.60 = 90,348.40 : x
  2. Step 2: Convert to fraction form
    202,614.40/303,921.60 = 90,348.40/x
  3. Step 3: Cross multiply
    202,614.40x = 303,921.60 × 90,348.40
  4. Step 4: Simplify right side
    202,614.40x = 27,458,830,285.44
  5. Step 5: Solve for x
    x = 27,458,830,285.44/202,614.40
  6. Step 6: Final answer
    x = 135,522.60

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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.