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Finding the Fourth Proportional to 218,273.70, 327,410.55 and 173,658.90

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Solution

The fourth proportional to 218,273.70, 327,410.55 and 173,658.90 is: 260,488.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,273.70 : 327,410.55 = 173,658.90 : x
  2. Step 2: Convert to fraction form
    218,273.70/327,410.55 = 173,658.90/x
  3. Step 3: Cross multiply
    218,273.70x = 327,410.55 × 173,658.90
  4. Step 4: Simplify right side
    218,273.70x = 56,857,755,961.40
  5. Step 5: Solve for x
    x = 56,857,755,961.40/218,273.70
  6. Step 6: Final answer
    x = 260,488.35

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1.5x scale

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.