Finding the Fourth Proportional to 352,614.93, 528,918.75 and 86,376.84
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Solution
The fourth proportional to 352,614.93, 528,918.75 and 86,376.84 is: 129,564.37
Step by Step Solution
- Step 1: Write the proportion equation
352,614.93 : 528,918.75 = 86,376.84 : x - Step 2: Convert to fraction form
352,614.93/528,918.75 = 86,376.84/x - Step 3: Cross multiply
352,614.93x = 528,918.75 × 86,376.84 - Step 4: Simplify right side
352,614.93x = 45,686,330,241.75 - Step 5: Solve for x
x = 45,686,330,241.75/352,614.93 - Step 6: Final answer
x = 129,564.37
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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.