Finding the Fourth Proportional to 317,663.51, 478,778.58 and 273,819.42
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Solution
The fourth proportional to 317,663.51, 478,778.58 and 273,819.42 is: 412,697.31
Step by Step Solution
- Step 1: Write the proportion equation
317,663.51 : 478,778.58 = 273,819.42 : x - Step 2: Convert to fraction form
317,663.51/478,778.58 = 273,819.42/x - Step 3: Cross multiply
317,663.51x = 478,778.58 × 273,819.42 - Step 4: Simplify right side
317,663.51x = 131,098,873,084.02 - Step 5: Solve for x
x = 131,098,873,084.02/317,663.51 - Step 6: Final answer
x = 412,697.31
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.