Finding the Fourth Proportional to 212,649.41, 293,452.91 and 117,159.53
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Solution
The fourth proportional to 212,649.41, 293,452.91 and 117,159.53 is: 161,678.34
Step by Step Solution
- Step 1: Write the proportion equation
212,649.41 : 293,452.91 = 117,159.53 : x - Step 2: Convert to fraction form
212,649.41/293,452.91 = 117,159.53/x - Step 3: Cross multiply
212,649.41x = 293,452.91 × 117,159.53 - Step 4: Simplify right side
212,649.41x = 34,380,803,399.02 - Step 5: Solve for x
x = 34,380,803,399.02/212,649.41 - Step 6: Final answer
x = 161,678.34
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1.5x scale
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.