Home / 211,514.16-317,262.06-71,272.20

Finding the Fourth Proportional to 211,514.16, 317,262.06 and 71,272.20

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Solution

The fourth proportional to 211,514.16, 317,262.06 and 71,272.20 is: 106,905.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,514.16 : 317,262.06 = 71,272.20 : x
  2. Step 2: Convert to fraction form
    211,514.16/317,262.06 = 71,272.20/x
  3. Step 3: Cross multiply
    211,514.16x = 317,262.06 × 71,272.20
  4. Step 4: Simplify right side
    211,514.16x = 22,611,964,992.73
  5. Step 5: Solve for x
    x = 22,611,964,992.73/211,514.16
  6. Step 6: Final answer
    x = 106,905.21

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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.