Finding the Fourth Proportional to 207,291.09, 310,438.36 and 118,274.72
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Solution
The fourth proportional to 207,291.09, 310,438.36 and 118,274.72 is: 177,127.78
Step by Step Solution
- Step 1: Write the proportion equation
207,291.09 : 310,438.36 = 118,274.72 : x - Step 2: Convert to fraction form
207,291.09/310,438.36 = 118,274.72/x - Step 3: Cross multiply
207,291.09x = 310,438.36 × 118,274.72 - Step 4: Simplify right side
207,291.09x = 36,717,009,514.89 - Step 5: Solve for x
x = 36,717,009,514.89/207,291.09 - Step 6: Final answer
x = 177,127.78
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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.