Finding the Fourth Proportional to 343,808.75, 515,920.50 and 146,816.75
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Solution
The fourth proportional to 343,808.75, 515,920.50 and 146,816.75 is: 220,313.68
Step by Step Solution
- Step 1: Write the proportion equation
343,808.75 : 515,920.50 = 146,816.75 : x - Step 2: Convert to fraction form
343,808.75/515,920.50 = 146,816.75/x - Step 3: Cross multiply
343,808.75x = 515,920.50 × 146,816.75 - Step 4: Simplify right side
343,808.75x = 75,745,771,068.38 - Step 5: Solve for x
x = 75,745,771,068.38/343,808.75 - Step 6: Final answer
x = 220,313.68
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1.5x scale
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.