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Finding the Third Proportional to 77,176 and 169,124

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Solution

The third proportional to 77,176 and 169,124 is: 370,619.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,176 : 169,124 = 169,124 : x
  2. Step 2: Convert to fraction form
    77,176/169,124 = 169,124/x
  3. Step 3: Cross multiply
    77,176x = 169,124 × 169,124
  4. Step 4: Simplify right side
    77,176x = 28,602,927,376
  5. Step 5: Solve for x
    x = 28,602,927,376/77,176
  6. Step 6: Final answer
    x = 370,619.46

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.