Finding the Fourth Proportional to 389,845.14, 538,032.97 and 236,908.32
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Solution
The fourth proportional to 389,845.14, 538,032.97 and 236,908.32 is: 326,961.84
Step by Step Solution
- Step 1: Write the proportion equation
389,845.14 : 538,032.97 = 236,908.32 : x - Step 2: Convert to fraction form
389,845.14/538,032.97 = 236,908.32/x - Step 3: Cross multiply
389,845.14x = 538,032.97 × 236,908.32 - Step 4: Simplify right side
389,845.14x = 127,464,484,337.15 - Step 5: Solve for x
x = 127,464,484,337.15/389,845.14 - Step 6: Final answer
x = 326,961.84
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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.