Finding the Fourth Proportional to 202,046.76, 278,885.70 and 117,184.68
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Solution
The fourth proportional to 202,046.76, 278,885.70 and 117,184.68 is: 161,750.34
Step by Step Solution
- Step 1: Write the proportion equation
202,046.76 : 278,885.70 = 117,184.68 : x - Step 2: Convert to fraction form
202,046.76/278,885.70 = 117,184.68/x - Step 3: Cross multiply
202,046.76x = 278,885.70 × 117,184.68 - Step 4: Simplify right side
202,046.76x = 32,681,131,511.08 - Step 5: Solve for x
x = 32,681,131,511.08/202,046.76 - Step 6: Final answer
x = 161,750.34
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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.