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Finding the Fourth Proportional to 224,173.80, 309,355.62 and 122,200.20

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Solution

The fourth proportional to 224,173.80, 309,355.62 and 122,200.20 is: 168,633.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,173.80 : 309,355.62 = 122,200.20 : x
  2. Step 2: Convert to fraction form
    224,173.80/309,355.62 = 122,200.20/x
  3. Step 3: Cross multiply
    224,173.80x = 309,355.62 × 122,200.20
  4. Step 4: Simplify right side
    224,173.80x = 37,803,318,635.12
  5. Step 5: Solve for x
    x = 37,803,318,635.12/224,173.80
  6. Step 6: Final answer
    x = 168,633.97

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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.