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Finding the Fourth Proportional to 202,302.60, 303,626.70 and 90,155.40

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Solution

The fourth proportional to 202,302.60, 303,626.70 and 90,155.40 is: 135,310.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,302.60 : 303,626.70 = 90,155.40 : x
  2. Step 2: Convert to fraction form
    202,302.60/303,626.70 = 90,155.40/x
  3. Step 3: Cross multiply
    202,302.60x = 303,626.70 × 90,155.40
  4. Step 4: Simplify right side
    202,302.60x = 27,373,586,589.18
  5. Step 5: Solve for x
    x = 27,373,586,589.18/202,302.60
  6. Step 6: Final answer
    x = 135,310.11

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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.