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Finding the Fourth Proportional to 214,914.70, 322,716.30 and 170,907.40

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Solution

The fourth proportional to 214,914.70, 322,716.30 and 170,907.40 is: 256,634.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,914.70 : 322,716.30 = 170,907.40 : x
  2. Step 2: Convert to fraction form
    214,914.70/322,716.30 = 170,907.40/x
  3. Step 3: Cross multiply
    214,914.70x = 322,716.30 × 170,907.40
  4. Step 4: Simplify right side
    214,914.70x = 55,154,603,770.62
  5. Step 5: Solve for x
    x = 55,154,603,770.62/214,914.70
  6. Step 6: Final answer
    x = 256,634.86

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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.