Finding the Fourth Proportional to 305,825.92, 422,587.36 and 239,263.36
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Solution
The fourth proportional to 305,825.92, 422,587.36 and 239,263.36 is: 330,611.84
Step by Step Solution
- Step 1: Write the proportion equation
305,825.92 : 422,587.36 = 239,263.36 : x - Step 2: Convert to fraction form
305,825.92/422,587.36 = 239,263.36/x - Step 3: Cross multiply
305,825.92x = 422,587.36 × 239,263.36 - Step 4: Simplify right side
305,825.92x = 101,109,671,647.13 - Step 5: Solve for x
x = 101,109,671,647.13/305,825.92 - Step 6: Final answer
x = 330,611.84
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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.