Finding the Fourth Proportional to 218,743.93, 328,122.98 and 68,985.66
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Solution
The fourth proportional to 218,743.93, 328,122.98 and 68,985.66 is: 103,480.72
Step by Step Solution
- Step 1: Write the proportion equation
218,743.93 : 328,122.98 = 68,985.66 : x - Step 2: Convert to fraction form
218,743.93/328,122.98 = 68,985.66/x - Step 3: Cross multiply
218,743.93x = 328,122.98 × 68,985.66 - Step 4: Simplify right side
218,743.93x = 22,635,780,336.47 - Step 5: Solve for x
x = 22,635,780,336.47/218,743.93 - Step 6: Final answer
x = 103,480.72
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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.