Finding the Fourth Proportional to 221,199.40, 305,242.02 and 125,692.84
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Solution
The fourth proportional to 221,199.40, 305,242.02 and 125,692.84 is: 173,448.65
Step by Step Solution
- Step 1: Write the proportion equation
221,199.40 : 305,242.02 = 125,692.84 : x - Step 2: Convert to fraction form
221,199.40/305,242.02 = 125,692.84/x - Step 3: Cross multiply
221,199.40x = 305,242.02 × 125,692.84 - Step 4: Simplify right side
221,199.40x = 38,366,736,381.14 - Step 5: Solve for x
x = 38,366,736,381.14/221,199.40 - Step 6: Final answer
x = 173,448.65
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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.