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Finding the Fourth Proportional to 557,282.70, 835,660.55 and 215,886.03

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Solution

The fourth proportional to 557,282.70, 835,660.55 and 215,886.03 is: 323,726.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,282.70 : 835,660.55 = 215,886.03 : x
  2. Step 2: Convert to fraction form
    557,282.70/835,660.55 = 215,886.03/x
  3. Step 3: Cross multiply
    557,282.70x = 835,660.55 × 215,886.03
  4. Step 4: Simplify right side
    557,282.70x = 180,407,437,487.69
  5. Step 5: Solve for x
    x = 180,407,437,487.69/557,282.70
  6. Step 6: Final answer
    x = 323,726.97

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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.