Finding the Fourth Proportional to 278,586.65, 384,483.56 and 163,859.82
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Solution
The fourth proportional to 278,586.65, 384,483.56 and 163,859.82 is: 226,146.55
Step by Step Solution
- Step 1: Write the proportion equation
278,586.65 : 384,483.56 = 163,859.82 : x - Step 2: Convert to fraction form
278,586.65/384,483.56 = 163,859.82/x - Step 3: Cross multiply
278,586.65x = 384,483.56 × 163,859.82 - Step 4: Simplify right side
278,586.65x = 63,001,407,344.21 - Step 5: Solve for x
x = 63,001,407,344.21/278,586.65 - Step 6: Final answer
x = 226,146.55
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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.