Home / 216,940.27-299,378.75-120,147.29

Finding the Fourth Proportional to 216,940.27, 299,378.75 and 120,147.29

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Solution

The fourth proportional to 216,940.27, 299,378.75 and 120,147.29 is: 165,803.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,940.27 : 299,378.75 = 120,147.29 : x
  2. Step 2: Convert to fraction form
    216,940.27/299,378.75 = 120,147.29/x
  3. Step 3: Cross multiply
    216,940.27x = 299,378.75 × 120,147.29
  4. Step 4: Simplify right side
    216,940.27x = 35,969,545,496.09
  5. Step 5: Solve for x
    x = 35,969,545,496.09/216,940.27
  6. Step 6: Final answer
    x = 165,803.91

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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.