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Finding the Fourth Proportional to 211,243.80, 316,967.22 and 131,260.08

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Solution

The fourth proportional to 211,243.80, 316,967.22 and 131,260.08 is: 196,953.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,243.80 : 316,967.22 = 131,260.08 : x
  2. Step 2: Convert to fraction form
    211,243.80/316,967.22 = 131,260.08/x
  3. Step 3: Cross multiply
    211,243.80x = 316,967.22 × 131,260.08
  4. Step 4: Simplify right side
    211,243.80x = 41,605,142,654.58
  5. Step 5: Solve for x
    x = 41,605,142,654.58/211,243.80
  6. Step 6: Final answer
    x = 196,953.20

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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.