Finding the Fourth Proportional to 221,349.91, 305,477.31 and 125,865.49
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Solution
The fourth proportional to 221,349.91, 305,477.31 and 125,865.49 is: 173,702.58
Step by Step Solution
- Step 1: Write the proportion equation
221,349.91 : 305,477.31 = 125,865.49 : x - Step 2: Convert to fraction form
221,349.91/305,477.31 = 125,865.49/x - Step 3: Cross multiply
221,349.91x = 305,477.31 × 125,865.49 - Step 4: Simplify right side
221,349.91x = 38,449,051,307.03 - Step 5: Solve for x
x = 38,449,051,307.03/221,349.91 - Step 6: Final answer
x = 173,702.58
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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.