Finding the Fourth Proportional to 251,979.66, 347,706.69 and 155,167.99
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Solution
The fourth proportional to 251,979.66, 347,706.69 and 155,167.99 is: 214,116.28
Step by Step Solution
- Step 1: Write the proportion equation
251,979.66 : 347,706.69 = 155,167.99 : x - Step 2: Convert to fraction form
251,979.66/347,706.69 = 155,167.99/x - Step 3: Cross multiply
251,979.66x = 347,706.69 × 155,167.99 - Step 4: Simplify right side
251,979.66x = 53,952,947,618.53 - Step 5: Solve for x
x = 53,952,947,618.53/251,979.66 - Step 6: Final answer
x = 214,116.28
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.