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Finding the Fourth Proportional to 303,520.60, 454,244.10 and 266,195.80

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Solution

The fourth proportional to 303,520.60, 454,244.10 and 266,195.80 is: 398,384.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,520.60 : 454,244.10 = 266,195.80 : x
  2. Step 2: Convert to fraction form
    303,520.60/454,244.10 = 266,195.80/x
  3. Step 3: Cross multiply
    303,520.60x = 454,244.10 × 266,195.80
  4. Step 4: Simplify right side
    303,520.60x = 120,917,871,594.78
  5. Step 5: Solve for x
    x = 120,917,871,594.78/303,520.60
  6. Step 6: Final answer
    x = 398,384.40

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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.