Finding the Fourth Proportional to 291,823.48, 402,716.64 and 157,687.48
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Solution
The fourth proportional to 291,823.48, 402,716.64 and 157,687.48 is: 217,608.85
Step by Step Solution
- Step 1: Write the proportion equation
291,823.48 : 402,716.64 = 157,687.48 : x - Step 2: Convert to fraction form
291,823.48/402,716.64 = 157,687.48/x - Step 3: Cross multiply
291,823.48x = 402,716.64 × 157,687.48 - Step 4: Simplify right side
291,823.48x = 63,503,372,115.67 - Step 5: Solve for x
x = 63,503,372,115.67/291,823.48 - Step 6: Final answer
x = 217,608.85
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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.