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Finding the Fourth Proportional to 557,138.92, 835,609.62 and 253,462.54

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Solution

The fourth proportional to 557,138.92, 835,609.62 and 253,462.54 is: 380,148.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,138.92 : 835,609.62 = 253,462.54 : x
  2. Step 2: Convert to fraction form
    557,138.92/835,609.62 = 253,462.54/x
  3. Step 3: Cross multiply
    557,138.92x = 835,609.62 × 253,462.54
  4. Step 4: Simplify right side
    557,138.92x = 211,795,736,733.64
  5. Step 5: Solve for x
    x = 211,795,736,733.64/557,138.92
  6. Step 6: Final answer
    x = 380,148.88

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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.