Finding the Fourth Proportional to 291,268.36, 401,869.12 and 187,858.79
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Solution
The fourth proportional to 291,268.36, 401,869.12 and 187,858.79 is: 259,192.76
Step by Step Solution
- Step 1: Write the proportion equation
291,268.36 : 401,869.12 = 187,858.79 : x - Step 2: Convert to fraction form
291,268.36/401,869.12 = 187,858.79/x - Step 3: Cross multiply
291,268.36x = 401,869.12 × 187,858.79 - Step 4: Simplify right side
291,268.36x = 75,494,648,790.68 - Step 5: Solve for x
x = 75,494,648,790.68/291,268.36 - Step 6: Final answer
x = 259,192.76
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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.