Finding the Fourth Proportional to 291,957.75, 402,902.24 and 157,821.75
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Solution
The fourth proportional to 291,957.75, 402,902.24 and 157,821.75 is: 217,794.31
Step by Step Solution
- Step 1: Write the proportion equation
291,957.75 : 402,902.24 = 157,821.75 : x - Step 2: Convert to fraction form
291,957.75/402,902.24 = 157,821.75/x - Step 3: Cross multiply
291,957.75x = 402,902.24 × 157,821.75 - Step 4: Simplify right side
291,957.75x = 63,586,736,595.72 - Step 5: Solve for x
x = 63,586,736,595.72/291,957.75 - Step 6: Final answer
x = 217,794.31
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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.