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Finding the Third Proportional to 30,578 and 46,190

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Solution

The third proportional to 30,578 and 46,190 is: 69,772.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,578 : 46,190 = 46,190 : x
  2. Step 2: Convert to fraction form
    30,578/46,190 = 46,190/x
  3. Step 3: Cross multiply
    30,578x = 46,190 × 46,190
  4. Step 4: Simplify right side
    30,578x = 2,133,516,100
  5. Step 5: Solve for x
    x = 2,133,516,100/30,578
  6. Step 6: Final answer
    x = 69,772.91

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.