Finding the Fourth Proportional to 155,716.29, 213,486.97 and 152,878.71
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Solution
The fourth proportional to 155,716.29, 213,486.97 and 152,878.71 is: 209,596.65
Step by Step Solution
- Step 1: Write the proportion equation
155,716.29 : 213,486.97 = 152,878.71 : x - Step 2: Convert to fraction form
155,716.29/213,486.97 = 152,878.71/x - Step 3: Cross multiply
155,716.29x = 213,486.97 × 152,878.71 - Step 4: Simplify right side
155,716.29x = 32,637,612,575.41 - Step 5: Solve for x
x = 32,637,612,575.41/155,716.29 - Step 6: Final answer
x = 209,596.65
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.