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Finding the Fourth Proportional to 211,463.73, 291,842.87 and 135,053.01

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Solution

The fourth proportional to 211,463.73, 291,842.87 and 135,053.01 is: 186,387.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,463.73 : 291,842.87 = 135,053.01 : x
  2. Step 2: Convert to fraction form
    211,463.73/291,842.87 = 135,053.01/x
  3. Step 3: Cross multiply
    211,463.73x = 291,842.87 × 135,053.01
  4. Step 4: Simplify right side
    211,463.73x = 39,414,257,365.27
  5. Step 5: Solve for x
    x = 39,414,257,365.27/211,463.73
  6. Step 6: Final answer
    x = 186,387.79

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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.