Finding the Fourth Proportional to 180,217.67, 248,690.34 and 99,640.49
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Solution
The fourth proportional to 180,217.67, 248,690.34 and 99,640.49 is: 137,498.32
Step by Step Solution
- Step 1: Write the proportion equation
180,217.67 : 248,690.34 = 99,640.49 : x - Step 2: Convert to fraction form
180,217.67/248,690.34 = 99,640.49/x - Step 3: Cross multiply
180,217.67x = 248,690.34 × 99,640.49 - Step 4: Simplify right side
180,217.67x = 24,779,627,335.87 - Step 5: Solve for x
x = 24,779,627,335.87/180,217.67 - Step 6: Final answer
x = 137,498.32
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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.