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Finding the Fourth Proportional to 226,944.40, 340,416.60 and 215,280.40

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Solution

The fourth proportional to 226,944.40, 340,416.60 and 215,280.40 is: 322,920.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,944.40 : 340,416.60 = 215,280.40 : x
  2. Step 2: Convert to fraction form
    226,944.40/340,416.60 = 215,280.40/x
  3. Step 3: Cross multiply
    226,944.40x = 340,416.60 × 215,280.40
  4. Step 4: Simplify right side
    226,944.40x = 73,285,021,814.64
  5. Step 5: Solve for x
    x = 73,285,021,814.64/226,944.40
  6. Step 6: Final answer
    x = 322,920.60

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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.