Finding the Fourth Proportional to 221,384.99, 305,509.77 and 125,891.66
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Solution
The fourth proportional to 221,384.99, 305,509.77 and 125,891.66 is: 173,729.63
Step by Step Solution
- Step 1: Write the proportion equation
221,384.99 : 305,509.77 = 125,891.66 : x - Step 2: Convert to fraction form
221,384.99/305,509.77 = 125,891.66/x - Step 3: Cross multiply
221,384.99x = 305,509.77 × 125,891.66 - Step 4: Simplify right side
221,384.99x = 38,461,132,091.52 - Step 5: Solve for x
x = 38,461,132,091.52/221,384.99 - Step 6: Final answer
x = 173,729.63
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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.