Finding the Fourth Proportional to 221,396.08, 305,572.08 and 135,369.76
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Solution
The fourth proportional to 221,396.08, 305,572.08 and 135,369.76 is: 186,838.08
Step by Step Solution
- Step 1: Write the proportion equation
221,396.08 : 305,572.08 = 135,369.76 : x - Step 2: Convert to fraction form
221,396.08/305,572.08 = 135,369.76/x - Step 3: Cross multiply
221,396.08x = 305,572.08 × 135,369.76 - Step 4: Simplify right side
221,396.08x = 41,365,219,132.30 - Step 5: Solve for x
x = 41,365,219,132.30/221,396.08 - Step 6: Final answer
x = 186,838.08
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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.