Finding the Fourth Proportional to 221,551.80, 331,859.70 and 146,707.80
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Solution
The fourth proportional to 221,551.80, 331,859.70 and 146,707.80 is: 219,751.80
Step by Step Solution
- Step 1: Write the proportion equation
221,551.80 : 331,859.70 = 146,707.80 : x - Step 2: Convert to fraction form
221,551.80/331,859.70 = 146,707.80/x - Step 3: Cross multiply
221,551.80x = 331,859.70 × 146,707.80 - Step 4: Simplify right side
221,551.80x = 48,686,406,495.66 - Step 5: Solve for x
x = 48,686,406,495.66/221,551.80 - Step 6: Final answer
x = 219,751.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.