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Finding the Fourth Proportional to 222,776.70, 334,165.05 and 212,408.70

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Solution

The fourth proportional to 222,776.70, 334,165.05 and 212,408.70 is: 318,613.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,776.70 : 334,165.05 = 212,408.70 : x
  2. Step 2: Convert to fraction form
    222,776.70/334,165.05 = 212,408.70/x
  3. Step 3: Cross multiply
    222,776.70x = 334,165.05 × 212,408.70
  4. Step 4: Simplify right side
    222,776.70x = 70,979,563,855.94
  5. Step 5: Solve for x
    x = 70,979,563,855.94/222,776.70
  6. Step 6: Final answer
    x = 318,613.05

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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.