Finding the Fourth Proportional to 218,926.53, 328,403.62 and 92,543.21
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Solution
The fourth proportional to 218,926.53, 328,403.62 and 92,543.21 is: 138,820.66
Step by Step Solution
- Step 1: Write the proportion equation
218,926.53 : 328,403.62 = 92,543.21 : x - Step 2: Convert to fraction form
218,926.53/328,403.62 = 92,543.21/x - Step 3: Cross multiply
218,926.53x = 328,403.62 × 92,543.21 - Step 4: Simplify right side
218,926.53x = 30,391,524,875.59 - Step 5: Solve for x
x = 30,391,524,875.59/218,926.53 - Step 6: Final answer
x = 138,820.66
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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.