Home / 211,531.57-317,298.45-71,291.41

Finding the Fourth Proportional to 211,531.57, 317,298.45 and 71,291.41

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Solution

The fourth proportional to 211,531.57, 317,298.45 and 71,291.41 is: 106,937.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,531.57 : 317,298.45 = 71,291.41 : x
  2. Step 2: Convert to fraction form
    211,531.57/317,298.45 = 71,291.41/x
  3. Step 3: Cross multiply
    211,531.57x = 317,298.45 × 71,291.41
  4. Step 4: Simplify right side
    211,531.57x = 22,620,653,891.31
  5. Step 5: Solve for x
    x = 22,620,653,891.31/211,531.57
  6. Step 6: Final answer
    x = 106,937.48

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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.