Finding the Fourth Proportional to 291,168.92, 436,531.44 and 91,374.08
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Solution
The fourth proportional to 291,168.92, 436,531.44 and 91,374.08 is: 136,991.47
Step by Step Solution
- Step 1: Write the proportion equation
291,168.92 : 436,531.44 = 91,374.08 : x - Step 2: Convert to fraction form
291,168.92/436,531.44 = 91,374.08/x - Step 3: Cross multiply
291,168.92x = 436,531.44 × 91,374.08 - Step 4: Simplify right side
291,168.92x = 39,887,658,721.08 - Step 5: Solve for x
x = 39,887,658,721.08/291,168.92 - Step 6: Final answer
x = 136,991.47
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.