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Finding the Fourth Proportional to 558,889.20, 838,333.80 and 203,914.80

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Solution

The fourth proportional to 558,889.20, 838,333.80 and 203,914.80 is: 305,872.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,889.20 : 838,333.80 = 203,914.80 : x
  2. Step 2: Convert to fraction form
    558,889.20/838,333.80 = 203,914.80/x
  3. Step 3: Cross multiply
    558,889.20x = 838,333.80 × 203,914.80
  4. Step 4: Simplify right side
    558,889.20x = 170,948,669,160.24
  5. Step 5: Solve for x
    x = 170,948,669,160.24/558,889.20
  6. Step 6: Final answer
    x = 305,872.20

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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.