Finding the Fourth Proportional to 221,382.99, 305,507.01 and 125,889.66
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Solution
The fourth proportional to 221,382.99, 305,507.01 and 125,889.66 is: 173,726.87
Step by Step Solution
- Step 1: Write the proportion equation
221,382.99 : 305,507.01 = 125,889.66 : x - Step 2: Convert to fraction form
221,382.99/305,507.01 = 125,889.66/x - Step 3: Cross multiply
221,382.99x = 305,507.01 × 125,889.66 - Step 4: Simplify right side
221,382.99x = 38,460,173,616.52 - Step 5: Solve for x
x = 38,460,173,616.52/221,382.99 - Step 6: Final answer
x = 173,726.87
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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.