Finding the Fourth Proportional to 300,976.96, 415,349.76 and 173,657.92
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Solution
The fourth proportional to 300,976.96, 415,349.76 and 173,657.92 is: 239,648.83
Step by Step Solution
- Step 1: Write the proportion equation
300,976.96 : 415,349.76 = 173,657.92 : x - Step 2: Convert to fraction form
300,976.96/415,349.76 = 173,657.92/x - Step 3: Cross multiply
300,976.96x = 415,349.76 × 173,657.92 - Step 4: Simplify right side
300,976.96x = 72,128,775,394.10 - Step 5: Solve for x
x = 72,128,775,394.10/300,976.96 - Step 6: Final answer
x = 239,648.83
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1.5x scale
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.