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Finding the Fourth Proportional to 303,434.60, 454,115.10 and 266,109.80

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Solution

The fourth proportional to 303,434.60, 454,115.10 and 266,109.80 is: 398,255.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,434.60 : 454,115.10 = 266,109.80 : x
  2. Step 2: Convert to fraction form
    303,434.60/454,115.10 = 266,109.80/x
  3. Step 3: Cross multiply
    303,434.60x = 454,115.10 × 266,109.80
  4. Step 4: Simplify right side
    303,434.60x = 120,844,478,437.98
  5. Step 5: Solve for x
    x = 120,844,478,437.98/303,434.60
  6. Step 6: Final answer
    x = 398,255.43

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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.