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Finding the Fourth Proportional to 559,997.20, 839,920.20 and 223,285.60

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Solution

The fourth proportional to 559,997.20, 839,920.20 and 223,285.60 is: 334,898.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,997.20 : 839,920.20 = 223,285.60 : x
  2. Step 2: Convert to fraction form
    559,997.20/839,920.20 = 223,285.60/x
  3. Step 3: Cross multiply
    559,997.20x = 839,920.20 × 223,285.60
  4. Step 4: Simplify right side
    559,997.20x = 187,542,085,809.12
  5. Step 5: Solve for x
    x = 187,542,085,809.12/559,997.20
  6. Step 6: Final answer
    x = 334,898.26

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Similar ratio
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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.