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Finding the Fourth Proportional to 276,630.26, 414,299.54 and 212,945.05

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Solution

The fourth proportional to 276,630.26, 414,299.54 and 212,945.05 is: 318,920.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,630.26 : 414,299.54 = 212,945.05 : x
  2. Step 2: Convert to fraction form
    276,630.26/414,299.54 = 212,945.05/x
  3. Step 3: Cross multiply
    276,630.26x = 414,299.54 × 212,945.05
  4. Step 4: Simplify right side
    276,630.26x = 88,223,037,310.51
  5. Step 5: Solve for x
    x = 88,223,037,310.51/276,630.26
  6. Step 6: Final answer
    x = 318,920.42

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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.