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Finding the Fourth Proportional to 381,912.30, 573,480.45 and 303,677.10

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Solution

The fourth proportional to 381,912.30, 573,480.45 and 303,677.10 is: 456,002.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,912.30 : 573,480.45 = 303,677.10 : x
  2. Step 2: Convert to fraction form
    381,912.30/573,480.45 = 303,677.10/x
  3. Step 3: Cross multiply
    381,912.30x = 573,480.45 × 303,677.10
  4. Step 4: Simplify right side
    381,912.30x = 174,152,879,962.70
  5. Step 5: Solve for x
    x = 174,152,879,962.70/381,912.30
  6. Step 6: Final answer
    x = 456,002.28

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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.