Finding the Fourth Proportional to 312,125.36, 430,729.93 and 168,882.26
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Solution
The fourth proportional to 312,125.36, 430,729.93 and 168,882.26 is: 233,055.86
Step by Step Solution
- Step 1: Write the proportion equation
312,125.36 : 430,729.93 = 168,882.26 : x - Step 2: Convert to fraction form
312,125.36/430,729.93 = 168,882.26/x - Step 3: Cross multiply
312,125.36x = 430,729.93 × 168,882.26 - Step 4: Simplify right side
312,125.36x = 72,742,644,028.04 - Step 5: Solve for x
x = 72,742,644,028.04/312,125.36 - Step 6: Final answer
x = 233,055.86
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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.