Finding the Fourth Proportional to 409,221.78, 564,636.97 and 248,116.42
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Solution
The fourth proportional to 409,221.78, 564,636.97 and 248,116.42 is: 342,346.65
Step by Step Solution
- Step 1: Write the proportion equation
409,221.78 : 564,636.97 = 248,116.42 : x - Step 2: Convert to fraction form
409,221.78/564,636.97 = 248,116.42/x - Step 3: Cross multiply
409,221.78x = 564,636.97 × 248,116.42 - Step 4: Simplify right side
409,221.78x = 140,095,703,596.05 - Step 5: Solve for x
x = 140,095,703,596.05/409,221.78 - Step 6: Final answer
x = 342,346.65
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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.