Finding the Fourth Proportional to 286,669.36, 395,608.44 and 157,613.28
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Solution
The fourth proportional to 286,669.36, 395,608.44 and 157,613.28 is: 217,508.92
Step by Step Solution
- Step 1: Write the proportion equation
286,669.36 : 395,608.44 = 157,613.28 : x - Step 2: Convert to fraction form
286,669.36/395,608.44 = 157,613.28/x - Step 3: Cross multiply
286,669.36x = 395,608.44 × 157,613.28 - Step 4: Simplify right side
286,669.36x = 62,353,143,824.08 - Step 5: Solve for x
x = 62,353,143,824.08/286,669.36 - Step 6: Final answer
x = 217,508.92
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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.