Finding the Fourth Proportional to 160,564.79, 221,369.36 and 138,144.62
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Solution
The fourth proportional to 160,564.79, 221,369.36 and 138,144.62 is: 190,458.85
Step by Step Solution
- Step 1: Write the proportion equation
160,564.79 : 221,369.36 = 138,144.62 : x - Step 2: Convert to fraction form
160,564.79/221,369.36 = 138,144.62/x - Step 3: Cross multiply
160,564.79x = 221,369.36 × 138,144.62 - Step 4: Simplify right side
160,564.79x = 30,580,985,979.54 - Step 5: Solve for x
x = 30,580,985,979.54/160,564.79 - Step 6: Final answer
x = 190,458.85
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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.