Finding the Fourth Proportional to 342,849.22, 512,188.91 and 221,921.08
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Solution
The fourth proportional to 342,849.22, 512,188.91 and 221,921.08 is: 331,532.08
Step by Step Solution
- Step 1: Write the proportion equation
342,849.22 : 512,188.91 = 221,921.08 : x - Step 2: Convert to fraction form
342,849.22/512,188.91 = 221,921.08/x - Step 3: Cross multiply
342,849.22x = 512,188.91 × 221,921.08 - Step 4: Simplify right side
342,849.22x = 113,665,516,071.22 - Step 5: Solve for x
x = 113,665,516,071.22/342,849.22 - Step 6: Final answer
x = 331,532.08
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.