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Finding the Fourth Proportional to 557,285.70, 835,665.04 and 215,889.04

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Solution

The fourth proportional to 557,285.70, 835,665.04 and 215,889.04 is: 323,731.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,285.70 : 835,665.04 = 215,889.04 : x
  2. Step 2: Convert to fraction form
    557,285.70/835,665.04 = 215,889.04/x
  3. Step 3: Cross multiply
    557,285.70x = 835,665.04 × 215,889.04
  4. Step 4: Simplify right side
    557,285.70x = 180,410,923,247.16
  5. Step 5: Solve for x
    x = 180,410,923,247.16/557,285.70
  6. Step 6: Final answer
    x = 323,731.48

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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.