Finding the Fourth Proportional to 305,312.08, 421,539.60 and 190,765.48
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Solution
The fourth proportional to 305,312.08, 421,539.60 and 190,765.48 is: 263,386.91
Step by Step Solution
- Step 1: Write the proportion equation
305,312.08 : 421,539.60 = 190,765.48 : x - Step 2: Convert to fraction form
305,312.08/421,539.60 = 190,765.48/x - Step 3: Cross multiply
305,312.08x = 421,539.60 × 190,765.48 - Step 4: Simplify right side
305,312.08x = 80,415,204,133.01 - Step 5: Solve for x
x = 80,415,204,133.01/305,312.08 - Step 6: Final answer
x = 263,386.91
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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.