Finding the Fourth Proportional to 201,852.99, 302,781.80 and 86,431.94
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Solution
The fourth proportional to 201,852.99, 302,781.80 and 86,431.94 is: 129,648.89
Step by Step Solution
- Step 1: Write the proportion equation
201,852.99 : 302,781.80 = 86,431.94 : x - Step 2: Convert to fraction form
201,852.99/302,781.80 = 86,431.94/x - Step 3: Cross multiply
201,852.99x = 302,781.80 × 86,431.94 - Step 4: Simplify right side
201,852.99x = 26,170,016,424.62 - Step 5: Solve for x
x = 26,170,016,424.62/201,852.99 - Step 6: Final answer
x = 129,648.89
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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.