Finding the Fourth Proportional to 316,559.75, 474,837.80 and 79,901.44
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Solution
The fourth proportional to 316,559.75, 474,837.80 and 79,901.44 is: 119,851.70
Step by Step Solution
- Step 1: Write the proportion equation
316,559.75 : 474,837.80 = 79,901.44 : x - Step 2: Convert to fraction form
316,559.75/474,837.80 = 79,901.44/x - Step 3: Cross multiply
316,559.75x = 474,837.80 × 79,901.44 - Step 4: Simplify right side
316,559.75x = 37,940,222,399.83 - Step 5: Solve for x
x = 37,940,222,399.83/316,559.75 - Step 6: Final answer
x = 119,851.70
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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.