Finding the Fourth Proportional to 389,063.75, 536,949.25 and 228,054.08
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Solution
The fourth proportional to 389,063.75, 536,949.25 and 228,054.08 is: 314,738.82
Step by Step Solution
- Step 1: Write the proportion equation
389,063.75 : 536,949.25 = 228,054.08 : x - Step 2: Convert to fraction form
389,063.75/536,949.25 = 228,054.08/x - Step 3: Cross multiply
389,063.75x = 536,949.25 × 228,054.08 - Step 4: Simplify right side
389,063.75x = 122,453,464,815.76 - Step 5: Solve for x
x = 122,453,464,815.76/389,063.75 - Step 6: Final answer
x = 314,738.82
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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.