Home / 211,530.57-317,296.95-71,290.41

Finding the Fourth Proportional to 211,530.57, 317,296.95 and 71,290.41

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Solution

The fourth proportional to 211,530.57, 317,296.95 and 71,290.41 is: 106,935.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,530.57 : 317,296.95 = 71,290.41 : x
  2. Step 2: Convert to fraction form
    211,530.57/317,296.95 = 71,290.41/x
  3. Step 3: Cross multiply
    211,530.57x = 317,296.95 × 71,290.41
  4. Step 4: Simplify right side
    211,530.57x = 22,620,229,657.25
  5. Step 5: Solve for x
    x = 22,620,229,657.25/211,530.57
  6. Step 6: Final answer
    x = 106,935.98

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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.