Finding the Fourth Proportional to 221,048.64, 305,047.80 and 125,556.12
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Solution
The fourth proportional to 221,048.64, 305,047.80 and 125,556.12 is: 173,267.83
Step by Step Solution
- Step 1: Write the proportion equation
221,048.64 : 305,047.80 = 125,556.12 : x - Step 2: Convert to fraction form
221,048.64/305,047.80 = 125,556.12/x - Step 3: Cross multiply
221,048.64x = 305,047.80 × 125,556.12 - Step 4: Simplify right side
221,048.64x = 38,300,618,182.54 - Step 5: Solve for x
x = 38,300,618,182.54/221,048.64 - Step 6: Final answer
x = 173,267.83
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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.