Finding the Fourth Proportional to 210,556.68, 290,572.02 and 115,067.40
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Solution
The fourth proportional to 210,556.68, 290,572.02 and 115,067.40 is: 158,795.09
Step by Step Solution
- Step 1: Write the proportion equation
210,556.68 : 290,572.02 = 115,067.40 : x - Step 2: Convert to fraction form
210,556.68/290,572.02 = 115,067.40/x - Step 3: Cross multiply
210,556.68x = 290,572.02 × 115,067.40 - Step 4: Simplify right side
210,556.68x = 33,435,366,854.15 - Step 5: Solve for x
x = 33,435,366,854.15/210,556.68 - Step 6: Final answer
x = 158,795.09
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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.