Finding the Fourth Proportional to 226,531.08, 312,629.13 and 135,890.82
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Solution
The fourth proportional to 226,531.08, 312,629.13 and 135,890.82 is: 187,539.07
Step by Step Solution
- Step 1: Write the proportion equation
226,531.08 : 312,629.13 = 135,890.82 : x - Step 2: Convert to fraction form
226,531.08/312,629.13 = 135,890.82/x - Step 3: Cross multiply
226,531.08x = 312,629.13 × 135,890.82 - Step 4: Simplify right side
226,531.08x = 42,483,428,831.59 - Step 5: Solve for x
x = 42,483,428,831.59/226,531.08 - Step 6: Final answer
x = 187,539.07
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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.