Finding the Fourth Proportional to 235,478.56, 353,230.05 and 77,719.31
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Solution
The fourth proportional to 235,478.56, 353,230.05 and 77,719.31 is: 116,582.99
Step by Step Solution
- Step 1: Write the proportion equation
235,478.56 : 353,230.05 = 77,719.31 : x - Step 2: Convert to fraction form
235,478.56/353,230.05 = 77,719.31/x - Step 3: Cross multiply
235,478.56x = 353,230.05 × 77,719.31 - Step 4: Simplify right side
235,478.56x = 27,452,795,757.27 - Step 5: Solve for x
x = 27,452,795,757.27/235,478.56 - Step 6: Final answer
x = 116,582.99
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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.