Finding the Third Proportional to 123,878 and 172,368
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Solution
The third proportional to 123,878 and 172,368 is: 239,838.61
Step by Step Solution
- Step 1: Write the proportion equation
123,878 : 172,368 = 172,368 : x - Step 2: Convert to fraction form
123,878/172,368 = 172,368/x - Step 3: Cross multiply
123,878x = 172,368 × 172,368 - Step 4: Simplify right side
123,878x = 29,710,727,424 - Step 5: Solve for x
x = 29,710,727,424/123,878 - Step 6: Final answer
x = 239,838.61
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These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.