Finding the Fourth Proportional to 291,832.88, 402,729.57 and 157,696.88
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Solution
The fourth proportional to 291,832.88, 402,729.57 and 157,696.88 is: 217,621.80
Step by Step Solution
- Step 1: Write the proportion equation
291,832.88 : 402,729.57 = 157,696.88 : x - Step 2: Convert to fraction form
291,832.88/402,729.57 = 157,696.88/x - Step 3: Cross multiply
291,832.88x = 402,729.57 × 157,696.88 - Step 4: Simplify right side
291,832.88x = 63,509,194,659.09 - Step 5: Solve for x
x = 63,509,194,659.09/291,832.88 - Step 6: Final answer
x = 217,621.80
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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.