Finding the Fourth Proportional to 221,560.18, 305,745.33 and 136,675.06
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Solution
The fourth proportional to 221,560.18, 305,745.33 and 136,675.06 is: 188,606.82
Step by Step Solution
- Step 1: Write the proportion equation
221,560.18 : 305,745.33 = 136,675.06 : x - Step 2: Convert to fraction form
221,560.18/305,745.33 = 136,675.06/x - Step 3: Cross multiply
221,560.18x = 305,745.33 × 136,675.06 - Step 4: Simplify right side
221,560.18x = 41,787,761,322.47 - Step 5: Solve for x
x = 41,787,761,322.47/221,560.18 - Step 6: Final answer
x = 188,606.82
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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.