Finding the Fourth Proportional to 207,613.40, 286,506.48 and 112,120.09
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Solution
The fourth proportional to 207,613.40, 286,506.48 and 112,120.09 is: 154,725.72
Step by Step Solution
- Step 1: Write the proportion equation
207,613.40 : 286,506.48 = 112,120.09 : x - Step 2: Convert to fraction form
207,613.40/286,506.48 = 112,120.09/x - Step 3: Cross multiply
207,613.40x = 286,506.48 × 112,120.09 - Step 4: Simplify right side
207,613.40x = 32,123,132,027.37 - Step 5: Solve for x
x = 32,123,132,027.37/207,613.40 - Step 6: Final answer
x = 154,725.72
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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.