Finding the Fourth Proportional to 198,482.30, 273,948.88 and 122,067.14
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Solution
The fourth proportional to 198,482.30, 273,948.88 and 122,067.14 is: 168,479.28
Step by Step Solution
- Step 1: Write the proportion equation
198,482.30 : 273,948.88 = 122,067.14 : x - Step 2: Convert to fraction form
198,482.30/273,948.88 = 122,067.14/x - Step 3: Cross multiply
198,482.30x = 273,948.88 × 122,067.14 - Step 4: Simplify right side
198,482.30x = 33,440,154,307.72 - Step 5: Solve for x
x = 33,440,154,307.72/198,482.30 - Step 6: Final answer
x = 168,479.28
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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.