Finding the Fourth Proportional to 249,129.36, 343,693.80 and 173,721.60
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Solution
The fourth proportional to 249,129.36, 343,693.80 and 173,721.60 is: 239,662.79
Step by Step Solution
- Step 1: Write the proportion equation
249,129.36 : 343,693.80 = 173,721.60 : x - Step 2: Convert to fraction form
249,129.36/343,693.80 = 173,721.60/x - Step 3: Cross multiply
249,129.36x = 343,693.80 × 173,721.60 - Step 4: Simplify right side
249,129.36x = 59,707,036,846.08 - Step 5: Solve for x
x = 59,707,036,846.08/249,129.36 - Step 6: Final answer
x = 239,662.79
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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.