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Finding the Fourth Proportional to 291,149.96, 401,794.78 and 163,830.04

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Solution

The fourth proportional to 291,149.96, 401,794.78 and 163,830.04 is: 226,089.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,149.96 : 401,794.78 = 163,830.04 : x
  2. Step 2: Convert to fraction form
    291,149.96/401,794.78 = 163,830.04/x
  3. Step 3: Cross multiply
    291,149.96x = 401,794.78 × 163,830.04
  4. Step 4: Simplify right side
    291,149.96x = 65,826,054,879.19
  5. Step 5: Solve for x
    x = 65,826,054,879.19/291,149.96
  6. Step 6: Final answer
    x = 226,089.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.