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Finding the Fourth Proportional to 345,816.75, 477,226.17 and 192,855.10

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Solution

The fourth proportional to 345,816.75, 477,226.17 and 192,855.10 is: 266,139.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,816.75 : 477,226.17 = 192,855.10 : x
  2. Step 2: Convert to fraction form
    345,816.75/477,226.17 = 192,855.10/x
  3. Step 3: Cross multiply
    345,816.75x = 477,226.17 × 192,855.10
  4. Step 4: Simplify right side
    345,816.75x = 92,035,500,737.97
  5. Step 5: Solve for x
    x = 92,035,500,737.97/345,816.75
  6. Step 6: Final answer
    x = 266,139.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.