Finding the Fourth Proportional to 245,195.21, 338,369.67 and 137,765.18
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Solution
The fourth proportional to 245,195.21, 338,369.67 and 137,765.18 is: 190,116.10
Step by Step Solution
- Step 1: Write the proportion equation
245,195.21 : 338,369.67 = 137,765.18 : x - Step 2: Convert to fraction form
245,195.21/338,369.67 = 137,765.18/x - Step 3: Cross multiply
245,195.21x = 338,369.67 × 137,765.18 - Step 4: Simplify right side
245,195.21x = 46,615,556,802.24 - Step 5: Solve for x
x = 46,615,556,802.24/245,195.21 - Step 6: Final answer
x = 190,116.10
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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.