Finding the Fourth Proportional to 427,136.09, 589,459.68 and 236,161.78
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Solution
The fourth proportional to 427,136.09, 589,459.68 and 236,161.78 is: 325,909.82
Step by Step Solution
- Step 1: Write the proportion equation
427,136.09 : 589,459.68 = 236,161.78 : x - Step 2: Convert to fraction form
427,136.09/589,459.68 = 236,161.78/x - Step 3: Cross multiply
427,136.09x = 589,459.68 × 236,161.78 - Step 4: Simplify right side
427,136.09x = 139,207,845,793.38 - Step 5: Solve for x
x = 139,207,845,793.38/427,136.09 - Step 6: Final answer
x = 325,909.82
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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.