Finding the Fourth Proportional to 235,912.97, 353,873.58 and 78,145.53
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Solution
The fourth proportional to 235,912.97, 353,873.58 and 78,145.53 is: 117,219.65
Step by Step Solution
- Step 1: Write the proportion equation
235,912.97 : 353,873.58 = 78,145.53 : x - Step 2: Convert to fraction form
235,912.97/353,873.58 = 78,145.53/x - Step 3: Cross multiply
235,912.97x = 353,873.58 × 78,145.53 - Step 4: Simplify right side
235,912.97x = 27,653,636,842.03 - Step 5: Solve for x
x = 27,653,636,842.03/235,912.97 - Step 6: Final answer
x = 117,219.65
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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.