Finding the Fourth Proportional to 400,971.08, 601,471.20 and 134,740.28
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Solution
The fourth proportional to 400,971.08, 601,471.20 and 134,740.28 is: 202,115.32
Step by Step Solution
- Step 1: Write the proportion equation
400,971.08 : 601,471.20 = 134,740.28 : x - Step 2: Convert to fraction form
400,971.08/601,471.20 = 134,740.28/x - Step 3: Cross multiply
400,971.08x = 601,471.20 × 134,740.28 - Step 4: Simplify right side
400,971.08x = 81,042,397,899.94 - Step 5: Solve for x
x = 81,042,397,899.94/400,971.08 - Step 6: Final answer
x = 202,115.32
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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.