Finding the Fourth Proportional to 309,325.68, 426,899.40 and 173,382.72
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Solution
The fourth proportional to 309,325.68, 426,899.40 and 173,382.72 is: 239,284.95
Step by Step Solution
- Step 1: Write the proportion equation
309,325.68 : 426,899.40 = 173,382.72 : x - Step 2: Convert to fraction form
309,325.68/426,899.40 = 173,382.72/x - Step 3: Cross multiply
309,325.68x = 426,899.40 × 173,382.72 - Step 4: Simplify right side
309,325.68x = 74,016,979,138.37 - Step 5: Solve for x
x = 74,016,979,138.37/309,325.68 - Step 6: Final answer
x = 239,284.95
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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.