Finding the Fourth Proportional to 319,627.36, 478,859.59 and 186,102.82
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Solution
The fourth proportional to 319,627.36, 478,859.59 and 186,102.82 is: 278,815.68
Step by Step Solution
- Step 1: Write the proportion equation
319,627.36 : 478,859.59 = 186,102.82 : x - Step 2: Convert to fraction form
319,627.36/478,859.59 = 186,102.82/x - Step 3: Cross multiply
319,627.36x = 478,859.59 × 186,102.82 - Step 4: Simplify right side
319,627.36x = 89,117,116,758.23 - Step 5: Solve for x
x = 89,117,116,758.23/319,627.36 - Step 6: Final answer
x = 278,815.68
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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.