Finding the Fourth Proportional to 345,615.75, 476,949.74 and 186,639.75
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Solution
The fourth proportional to 345,615.75, 476,949.74 and 186,639.75 is: 257,562.86
Step by Step Solution
- Step 1: Write the proportion equation
345,615.75 : 476,949.74 = 186,639.75 : x - Step 2: Convert to fraction form
345,615.75/476,949.74 = 186,639.75/x - Step 3: Cross multiply
345,615.75x = 476,949.74 × 186,639.75 - Step 4: Simplify right side
345,615.75x = 89,017,779,302.97 - Step 5: Solve for x
x = 89,017,779,302.97/345,615.75 - Step 6: Final answer
x = 257,562.86
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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.