Finding the Fourth Proportional to 399,192.18, 598,658.67 and 132,881.19
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Solution
The fourth proportional to 399,192.18, 598,658.67 and 132,881.19 is: 199,278.64
Step by Step Solution
- Step 1: Write the proportion equation
399,192.18 : 598,658.67 = 132,881.19 : x - Step 2: Convert to fraction form
399,192.18/598,658.67 = 132,881.19/x - Step 3: Cross multiply
399,192.18x = 598,658.67 × 132,881.19 - Step 4: Simplify right side
399,192.18x = 79,550,476,473.42 - Step 5: Solve for x
x = 79,550,476,473.42/399,192.18 - Step 6: Final answer
x = 199,278.64
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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.