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Finding the Fourth Proportional to 216,775.37, 299,147.78 and 119,979.43

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Solution

The fourth proportional to 216,775.37, 299,147.78 and 119,979.43 is: 165,570.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,775.37 : 299,147.78 = 119,979.43 : x
  2. Step 2: Convert to fraction form
    216,775.37/299,147.78 = 119,979.43/x
  3. Step 3: Cross multiply
    216,775.37x = 299,147.78 × 119,979.43
  4. Step 4: Simplify right side
    216,775.37x = 35,891,579,682.24
  5. Step 5: Solve for x
    x = 35,891,579,682.24/216,775.37
  6. Step 6: Final answer
    x = 165,570.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.