Finding the Fourth Proportional to 304,933.75, 420,808.58 and 185,701.75
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Solution
The fourth proportional to 304,933.75, 420,808.58 and 185,701.75 is: 256,268.42
Step by Step Solution
- Step 1: Write the proportion equation
304,933.75 : 420,808.58 = 185,701.75 : x - Step 2: Convert to fraction form
304,933.75/420,808.58 = 185,701.75/x - Step 3: Cross multiply
304,933.75x = 420,808.58 × 185,701.75 - Step 4: Simplify right side
304,933.75x = 78,144,889,721.02 - Step 5: Solve for x
x = 78,144,889,721.02/304,933.75 - Step 6: Final answer
x = 256,268.42
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1.5x scale
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.