Home / 211,186.11-316,963.70-122,317.37

Finding the Fourth Proportional to 211,186.11, 316,963.70 and 122,317.37

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Solution

The fourth proportional to 211,186.11, 316,963.70 and 122,317.37 is: 183,582.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,186.11 : 316,963.70 = 122,317.37 : x
  2. Step 2: Convert to fraction form
    211,186.11/316,963.70 = 122,317.37/x
  3. Step 3: Cross multiply
    211,186.11x = 316,963.70 × 122,317.37
  4. Step 4: Simplify right side
    211,186.11x = 38,770,166,169.47
  5. Step 5: Solve for x
    x = 38,770,166,169.47/211,186.11
  6. Step 6: Final answer
    x = 183,582.94

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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.