Finding the Fourth Proportional to 642,166.44, 963,439.74 and 221,484.84
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Solution
The fourth proportional to 642,166.44, 963,439.74 and 221,484.84 is: 332,292.82
Step by Step Solution
- Step 1: Write the proportion equation
642,166.44 : 963,439.74 = 221,484.84 : x - Step 2: Convert to fraction form
642,166.44/963,439.74 = 221,484.84/x - Step 3: Cross multiply
642,166.44x = 963,439.74 × 221,484.84 - Step 4: Simplify right side
642,166.44x = 213,387,296,663.54 - Step 5: Solve for x
x = 213,387,296,663.54/642,166.44 - Step 6: Final answer
x = 332,292.82
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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.