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Finding the Fourth Proportional to 202,505.80, 303,758.70 and 191,680.15

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Solution

The fourth proportional to 202,505.80, 303,758.70 and 191,680.15 is: 287,520.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,505.80 : 303,758.70 = 191,680.15 : x
  2. Step 2: Convert to fraction form
    202,505.80/303,758.70 = 191,680.15/x
  3. Step 3: Cross multiply
    202,505.80x = 303,758.70 × 191,680.15
  4. Step 4: Simplify right side
    202,505.80x = 58,224,513,179.81
  5. Step 5: Solve for x
    x = 58,224,513,179.81/202,505.80
  6. Step 6: Final answer
    x = 287,520.23

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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.