Finding the Fourth Proportional to 306,778.68, 460,278.72 and 107,128.53
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Solution
The fourth proportional to 306,778.68, 460,278.72 and 107,128.53 is: 160,731.45
Step by Step Solution
- Step 1: Write the proportion equation
306,778.68 : 460,278.72 = 107,128.53 : x - Step 2: Convert to fraction form
306,778.68/460,278.72 = 107,128.53/x - Step 3: Cross multiply
306,778.68x = 460,278.72 × 107,128.53 - Step 4: Simplify right side
306,778.68x = 49,308,982,663.88 - Step 5: Solve for x
x = 49,308,982,663.88/306,778.68 - Step 6: Final answer
x = 160,731.45
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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.