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Finding the Fourth Proportional to 297,165, 445,244.34 and 212,495.31

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Solution

The fourth proportional to 297,165, 445,244.34 and 212,495.31 is: 318,383.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,165 : 445,244.34 = 212,495.31 : x
  2. Step 2: Convert to fraction form
    297,165/445,244.34 = 212,495.31/x
  3. Step 3: Cross multiply
    297,165x = 445,244.34 × 212,495.31
  4. Step 4: Simplify right side
    297,165x = 94,612,334,054.05
  5. Step 5: Solve for x
    x = 94,612,334,054.05/297,165
  6. Step 6: Final answer
    x = 318,383.17

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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.