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Finding the Fourth Proportional to 356,200.20, 533,522.70 and 276,690.60

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Solution

The fourth proportional to 356,200.20, 533,522.70 and 276,690.60 is: 414,431.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,200.20 : 533,522.70 = 276,690.60 : x
  2. Step 2: Convert to fraction form
    356,200.20/533,522.70 = 276,690.60/x
  3. Step 3: Cross multiply
    356,200.20x = 533,522.70 × 276,690.60
  4. Step 4: Simplify right side
    356,200.20x = 147,620,715,976.62
  5. Step 5: Solve for x
    x = 147,620,715,976.62/356,200.20
  6. Step 6: Final answer
    x = 414,431.87

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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.