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Finding the Fourth Proportional to 557,118.16, 835,843.92 and 220,206.40

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Solution

The fourth proportional to 557,118.16, 835,843.92 and 220,206.40 is: 330,375.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,118.16 : 835,843.92 = 220,206.40 : x
  2. Step 2: Convert to fraction form
    557,118.16/835,843.92 = 220,206.40/x
  3. Step 3: Cross multiply
    557,118.16x = 835,843.92 × 220,206.40
  4. Step 4: Simplify right side
    557,118.16x = 184,058,180,585.09
  5. Step 5: Solve for x
    x = 184,058,180,585.09/557,118.16
  6. Step 6: Final answer
    x = 330,375.48

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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.