Home / 211,640.34-317,441.07-71,400.18

Finding the Fourth Proportional to 211,640.34, 317,441.07 and 71,400.18

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Solution

The fourth proportional to 211,640.34, 317,441.07 and 71,400.18 is: 107,093.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,640.34 : 317,441.07 = 71,400.18 : x
  2. Step 2: Convert to fraction form
    211,640.34/317,441.07 = 71,400.18/x
  3. Step 3: Cross multiply
    211,640.34x = 317,441.07 × 71,400.18
  4. Step 4: Simplify right side
    211,640.34x = 22,665,349,537.39
  5. Step 5: Solve for x
    x = 22,665,349,537.39/211,640.34
  6. Step 6: Final answer
    x = 107,093.71

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1.5x scale

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.