Finding the Fourth Proportional to 286,673.36, 395,613.96 and 157,617.28
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Solution
The fourth proportional to 286,673.36, 395,613.96 and 157,617.28 is: 217,514.44
Step by Step Solution
- Step 1: Write the proportion equation
286,673.36 : 395,613.96 = 157,617.28 : x - Step 2: Convert to fraction form
286,673.36/395,613.96 = 157,617.28/x - Step 3: Cross multiply
286,673.36x = 395,613.96 × 157,617.28 - Step 4: Simplify right side
286,673.36x = 62,355,596,305.23 - Step 5: Solve for x
x = 62,355,596,305.23/286,673.36 - Step 6: Final answer
x = 217,514.44
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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.