Home / 211,691.48-317,087.41-143,344.56

Finding the Fourth Proportional to 211,691.48, 317,087.41 and 143,344.56

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Solution

The fourth proportional to 211,691.48, 317,087.41 and 143,344.56 is: 214,712.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,691.48 : 317,087.41 = 143,344.56 : x
  2. Step 2: Convert to fraction form
    211,691.48/317,087.41 = 143,344.56/x
  3. Step 3: Cross multiply
    211,691.48x = 317,087.41 × 143,344.56
  4. Step 4: Simplify right side
    211,691.48x = 45,452,754,296.09
  5. Step 5: Solve for x
    x = 45,452,754,296.09/211,691.48
  6. Step 6: Final answer
    x = 214,712.25

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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.