Home / 211,836.88-317,269.32-122,869.72

Finding the Fourth Proportional to 211,836.88, 317,269.32 and 122,869.72

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Solution

The fourth proportional to 211,836.88, 317,269.32 and 122,869.72 is: 184,022.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,836.88 : 317,269.32 = 122,869.72 : x
  2. Step 2: Convert to fraction form
    211,836.88/317,269.32 = 122,869.72/x
  3. Step 3: Cross multiply
    211,836.88x = 317,269.32 × 122,869.72
  4. Step 4: Simplify right side
    211,836.88x = 38,982,792,512.99
  5. Step 5: Solve for x
    x = 38,982,792,512.99/211,836.88
  6. Step 6: Final answer
    x = 184,022.69

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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.