Finding the Fourth Proportional to 278,130.31, 417,213.08 and 107,433.44
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Solution
The fourth proportional to 278,130.31, 417,213.08 and 107,433.44 is: 161,156.96
Step by Step Solution
- Step 1: Write the proportion equation
278,130.31 : 417,213.08 = 107,433.44 : x - Step 2: Convert to fraction form
278,130.31/417,213.08 = 107,433.44/x - Step 3: Cross multiply
278,130.31x = 417,213.08 × 107,433.44 - Step 4: Simplify right side
278,130.31x = 44,822,635,741.59 - Step 5: Solve for x
x = 44,822,635,741.59/278,130.31 - Step 6: Final answer
x = 161,156.96
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1.5x scale
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.