Finding the Fourth Proportional to 351,979.08, 485,740.70 and 199,040.15
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Solution
The fourth proportional to 351,979.08, 485,740.70 and 199,040.15 is: 274,680.81
Step by Step Solution
- Step 1: Write the proportion equation
351,979.08 : 485,740.70 = 199,040.15 : x - Step 2: Convert to fraction form
351,979.08/485,740.70 = 199,040.15/x - Step 3: Cross multiply
351,979.08x = 485,740.70 × 199,040.15 - Step 4: Simplify right side
351,979.08x = 96,681,898,365.20 - Step 5: Solve for x
x = 96,681,898,365.20/351,979.08 - Step 6: Final answer
x = 274,680.81
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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.