Finding the Fourth Proportional to 286,765.92, 395,465.76 and 218,663.28
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Solution
The fourth proportional to 286,765.92, 395,465.76 and 218,663.28 is: 301,548.53
Step by Step Solution
- Step 1: Write the proportion equation
286,765.92 : 395,465.76 = 218,663.28 : x - Step 2: Convert to fraction form
286,765.92/395,465.76 = 218,663.28/x - Step 3: Cross multiply
286,765.92x = 395,465.76 × 218,663.28 - Step 4: Simplify right side
286,765.92x = 86,473,840,209.29 - Step 5: Solve for x
x = 86,473,840,209.29/286,765.92 - Step 6: Final answer
x = 301,548.53
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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.