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Finding the Fourth Proportional to 297,611.52, 410,279.04 and 212,697.60

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Solution

The fourth proportional to 297,611.52, 410,279.04 and 212,697.60 is: 293,219.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,611.52 : 410,279.04 = 212,697.60 : x
  2. Step 2: Convert to fraction form
    297,611.52/410,279.04 = 212,697.60/x
  3. Step 3: Cross multiply
    297,611.52x = 410,279.04 × 212,697.60
  4. Step 4: Simplify right side
    297,611.52x = 87,265,367,138.30
  5. Step 5: Solve for x
    x = 87,265,367,138.30/297,611.52
  6. Step 6: Final answer
    x = 293,219.05

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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.