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Finding the Third Proportional to 163,119 and 358,314

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Solution

The third proportional to 163,119 and 358,314 is: 787,087.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,119 : 358,314 = 358,314 : x
  2. Step 2: Convert to fraction form
    163,119/358,314 = 358,314/x
  3. Step 3: Cross multiply
    163,119x = 358,314 × 358,314
  4. Step 4: Simplify right side
    163,119x = 128,388,922,596
  5. Step 5: Solve for x
    x = 128,388,922,596/163,119
  6. Step 6: Final answer
    x = 787,087.48

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.