Home / 211,469.92-291,828.56-115,978.64

Finding the Fourth Proportional to 211,469.92, 291,828.56 and 115,978.64

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Solution

The fourth proportional to 211,469.92, 291,828.56 and 115,978.64 is: 160,050.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,469.92 : 291,828.56 = 115,978.64 : x
  2. Step 2: Convert to fraction form
    211,469.92/291,828.56 = 115,978.64/x
  3. Step 3: Cross multiply
    211,469.92x = 291,828.56 × 115,978.64
  4. Step 4: Simplify right side
    211,469.92x = 33,845,879,501.96
  5. Step 5: Solve for x
    x = 33,845,879,501.96/211,469.92
  6. Step 6: Final answer
    x = 160,050.56

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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.