Finding the Fourth Proportional to 291,845.63, 402,746.97 and 157,709.63
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Solution
The fourth proportional to 291,845.63, 402,746.97 and 157,709.63 is: 217,639.29
Step by Step Solution
- Step 1: Write the proportion equation
291,845.63 : 402,746.97 = 157,709.63 : x - Step 2: Convert to fraction form
291,845.63/402,746.97 = 157,709.63/x - Step 3: Cross multiply
291,845.63x = 402,746.97 × 157,709.63 - Step 4: Simplify right side
291,845.63x = 63,517,073,608.59 - Step 5: Solve for x
x = 63,517,073,608.59/291,845.63 - Step 6: Final answer
x = 217,639.29
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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.