Finding the Fourth Proportional to 318,102.80, 438,982.72 and 182,138.80
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Solution
The fourth proportional to 318,102.80, 438,982.72 and 182,138.80 is: 251,352.03
Step by Step Solution
- Step 1: Write the proportion equation
318,102.80 : 438,982.72 = 182,138.80 : x - Step 2: Convert to fraction form
318,102.80/438,982.72 = 182,138.80/x - Step 3: Cross multiply
318,102.80x = 438,982.72 × 182,138.80 - Step 4: Simplify right side
318,102.80x = 79,955,785,841.54 - Step 5: Solve for x
x = 79,955,785,841.54/318,102.80 - Step 6: Final answer
x = 251,352.03
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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.