Finding the Fourth Proportional to 309,653.70, 427,326.75 and 173,717.70
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Solution
The fourth proportional to 309,653.70, 427,326.75 and 173,717.70 is: 239,733.03
Step by Step Solution
- Step 1: Write the proportion equation
309,653.70 : 427,326.75 = 173,717.70 : x - Step 2: Convert to fraction form
309,653.70/427,326.75 = 173,717.70/x - Step 3: Cross multiply
309,653.70x = 427,326.75 × 173,717.70 - Step 4: Simplify right side
309,653.70x = 74,234,220,158.48 - Step 5: Solve for x
x = 74,234,220,158.48/309,653.70 - Step 6: Final answer
x = 239,733.03
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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.