Home / 211,116.26-291,329.61-115,620.90

Finding the Fourth Proportional to 211,116.26, 291,329.61 and 115,620.90

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Solution

The fourth proportional to 211,116.26, 291,329.61 and 115,620.90 is: 159,550.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,116.26 : 291,329.61 = 115,620.90 : x
  2. Step 2: Convert to fraction form
    211,116.26/291,329.61 = 115,620.90/x
  3. Step 3: Cross multiply
    211,116.26x = 291,329.61 × 115,620.90
  4. Step 4: Simplify right side
    211,116.26x = 33,683,791,704.85
  5. Step 5: Solve for x
    x = 33,683,791,704.85/211,116.26
  6. Step 6: Final answer
    x = 159,550.92

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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.