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Finding the Fourth Proportional to 211,289.93, 291,578.42 and 115,796.39

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Solution

The fourth proportional to 211,289.93, 291,578.42 and 115,796.39 is: 159,798.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,289.93 : 291,578.42 = 115,796.39 : x
  2. Step 2: Convert to fraction form
    211,289.93/291,578.42 = 115,796.39/x
  3. Step 3: Cross multiply
    211,289.93x = 291,578.42 × 115,796.39
  4. Step 4: Simplify right side
    211,289.93x = 33,763,729,456.34
  5. Step 5: Solve for x
    x = 33,763,729,456.34/211,289.93
  6. Step 6: Final answer
    x = 159,798.10

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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.