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Finding the Fourth Proportional to 216,939.34, 325,284.41 and 115,612.65

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Solution

The fourth proportional to 216,939.34, 325,284.41 and 115,612.65 is: 173,352.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,939.34 : 325,284.41 = 115,612.65 : x
  2. Step 2: Convert to fraction form
    216,939.34/325,284.41 = 115,612.65/x
  3. Step 3: Cross multiply
    216,939.34x = 325,284.41 × 115,612.65
  4. Step 4: Simplify right side
    216,939.34x = 37,606,992,932.82
  5. Step 5: Solve for x
    x = 37,606,992,932.82/216,939.34
  6. Step 6: Final answer
    x = 173,352.57

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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.