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Finding the Fourth Proportional to 322,355.60, 483,418.20 and 112,000.40

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Solution

The fourth proportional to 322,355.60, 483,418.20 and 112,000.40 is: 167,960.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,355.60 : 483,418.20 = 112,000.40 : x
  2. Step 2: Convert to fraction form
    322,355.60/483,418.20 = 112,000.40/x
  3. Step 3: Cross multiply
    322,355.60x = 483,418.20 × 112,000.40
  4. Step 4: Simplify right side
    322,355.60x = 54,143,031,767.28
  5. Step 5: Solve for x
    x = 54,143,031,767.28/322,355.60
  6. Step 6: Final answer
    x = 167,960.57

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.