Finding the Fourth Proportional to 308,175.36, 425,412.98 and 187,355.23
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Solution
The fourth proportional to 308,175.36, 425,412.98 and 187,355.23 is: 258,629.84
Step by Step Solution
- Step 1: Write the proportion equation
308,175.36 : 425,412.98 = 187,355.23 : x - Step 2: Convert to fraction form
308,175.36/425,412.98 = 187,355.23/x - Step 3: Cross multiply
308,175.36x = 425,412.98 × 187,355.23 - Step 4: Simplify right side
308,175.36x = 79,703,343,649.04 - Step 5: Solve for x
x = 79,703,343,649.04/308,175.36 - Step 6: Final answer
x = 258,629.84
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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.