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Finding the Fourth Proportional to 383,143.30, 573,730.80 and 303,755.20

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Solution

The fourth proportional to 383,143.30, 573,730.80 and 303,755.20 is: 454,852.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,143.30 : 573,730.80 = 303,755.20 : x
  2. Step 2: Convert to fraction form
    383,143.30/573,730.80 = 303,755.20/x
  3. Step 3: Cross multiply
    383,143.30x = 573,730.80 × 303,755.20
  4. Step 4: Simplify right side
    383,143.30x = 174,273,713,900.16
  5. Step 5: Solve for x
    x = 174,273,713,900.16/383,143.30
  6. Step 6: Final answer
    x = 454,852.57

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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.