Finding the Fourth Proportional to 268,376.90, 402,565.09 and 68,696.97
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Solution
The fourth proportional to 268,376.90, 402,565.09 and 68,696.97 is: 103,045.39
Step by Step Solution
- Step 1: Write the proportion equation
268,376.90 : 402,565.09 = 68,696.97 : x - Step 2: Convert to fraction form
268,376.90/402,565.09 = 68,696.97/x - Step 3: Cross multiply
268,376.90x = 402,565.09 × 68,696.97 - Step 4: Simplify right side
268,376.90x = 27,655,001,910.78 - Step 5: Solve for x
x = 27,655,001,910.78/268,376.90 - Step 6: Final answer
x = 103,045.39
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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.