Finding the Fourth Proportional to 221,133.99, 305,142.62 and 125,622.03
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Solution
The fourth proportional to 221,133.99, 305,142.62 and 125,622.03 is: 173,345.74
Step by Step Solution
- Step 1: Write the proportion equation
221,133.99 : 305,142.62 = 125,622.03 : x - Step 2: Convert to fraction form
221,133.99/305,142.62 = 125,622.03/x - Step 3: Cross multiply
221,133.99x = 305,142.62 × 125,622.03 - Step 4: Simplify right side
221,133.99x = 38,332,634,735.81 - Step 5: Solve for x
x = 38,332,634,735.81/221,133.99 - Step 6: Final answer
x = 173,345.74
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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.