Finding the Fourth Proportional to 317,702.71, 438,431.16 and 181,738.14
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Solution
The fourth proportional to 317,702.71, 438,431.16 and 181,738.14 is: 250,799.45
Step by Step Solution
- Step 1: Write the proportion equation
317,702.71 : 438,431.16 = 181,738.14 : x - Step 2: Convert to fraction form
317,702.71/438,431.16 = 181,738.14/x - Step 3: Cross multiply
317,702.71x = 438,431.16 × 181,738.14 - Step 4: Simplify right side
317,702.71x = 79,679,663,536.44 - Step 5: Solve for x
x = 79,679,663,536.44/317,702.71 - Step 6: Final answer
x = 250,799.45
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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.