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Finding the Fourth Proportional to 217,408.85, 300,027.20 and 162,864.39

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Solution

The fourth proportional to 217,408.85, 300,027.20 and 162,864.39 is: 224,755.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,408.85 : 300,027.20 = 162,864.39 : x
  2. Step 2: Convert to fraction form
    217,408.85/300,027.20 = 162,864.39/x
  3. Step 3: Cross multiply
    217,408.85x = 300,027.20 × 162,864.39
  4. Step 4: Simplify right side
    217,408.85x = 48,863,746,911.41
  5. Step 5: Solve for x
    x = 48,863,746,911.41/217,408.85
  6. Step 6: Final answer
    x = 224,755.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.