Finding the Fourth Proportional to 454,436.98, 681,630.67 and 138,893.78
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Solution
The fourth proportional to 454,436.98, 681,630.67 and 138,893.78 is: 208,333.09
Step by Step Solution
- Step 1: Write the proportion equation
454,436.98 : 681,630.67 = 138,893.78 : x - Step 2: Convert to fraction form
454,436.98/681,630.67 = 138,893.78/x - Step 3: Cross multiply
454,436.98x = 681,630.67 × 138,893.78 - Step 4: Simplify right side
454,436.98x = 94,674,260,320.23 - Step 5: Solve for x
x = 94,674,260,320.23/454,436.98 - Step 6: Final answer
x = 208,333.09
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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.