Home / 211,530.80-317,296.20-207,844.40

Finding the Fourth Proportional to 211,530.80, 317,296.20 and 207,844.40

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Solution

The fourth proportional to 211,530.80, 317,296.20 and 207,844.40 is: 311,766.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,530.80 : 317,296.20 = 207,844.40 : x
  2. Step 2: Convert to fraction form
    211,530.80/317,296.20 = 207,844.40/x
  3. Step 3: Cross multiply
    211,530.80x = 317,296.20 × 207,844.40
  4. Step 4: Simplify right side
    211,530.80x = 65,948,238,311.28
  5. Step 5: Solve for x
    x = 65,948,238,311.28/211,530.80
  6. Step 6: Final answer
    x = 311,766.60

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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.