Finding the Fourth Proportional to 221,243.18, 305,312.73 and 125,743.58
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Solution
The fourth proportional to 221,243.18, 305,312.73 and 125,743.58 is: 173,524.51
Step by Step Solution
- Step 1: Write the proportion equation
221,243.18 : 305,312.73 = 125,743.58 : x - Step 2: Convert to fraction form
221,243.18/305,312.73 = 125,743.58/x - Step 3: Cross multiply
221,243.18x = 305,312.73 × 125,743.58 - Step 4: Simplify right side
221,243.18x = 38,391,114,163.21 - Step 5: Solve for x
x = 38,391,114,163.21/221,243.18 - Step 6: Final answer
x = 173,524.51
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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.