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Finding the Fourth Proportional to 211,760.82, 317,556.45 and 93,348

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Solution

The fourth proportional to 211,760.82, 317,556.45 and 93,348 is: 139,984.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,760.82 : 317,556.45 = 93,348 : x
  2. Step 2: Convert to fraction form
    211,760.82/317,556.45 = 93,348/x
  3. Step 3: Cross multiply
    211,760.82x = 317,556.45 × 93,348
  4. Step 4: Simplify right side
    211,760.82x = 29,643,259,494.60
  5. Step 5: Solve for x
    x = 29,643,259,494.60/211,760.82
  6. Step 6: Final answer
    x = 139,984.63

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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.