Finding the Fourth Proportional to 221,149.41, 305,176.51 and 135,252.55
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Solution
The fourth proportional to 221,149.41, 305,176.51 and 135,252.55 is: 186,642.60
Step by Step Solution
- Step 1: Write the proportion equation
221,149.41 : 305,176.51 = 135,252.55 : x - Step 2: Convert to fraction form
221,149.41/305,176.51 = 135,252.55/x - Step 3: Cross multiply
221,149.41x = 305,176.51 × 135,252.55 - Step 4: Simplify right side
221,149.41x = 41,275,901,177.60 - Step 5: Solve for x
x = 41,275,901,177.60/221,149.41 - Step 6: Final answer
x = 186,642.60
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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.