Finding the Fourth Proportional to 208,207.72, 311,948.70 and 124,918.12
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Solution
The fourth proportional to 208,207.72, 311,948.70 and 124,918.12 is: 187,159.46
Step by Step Solution
- Step 1: Write the proportion equation
208,207.72 : 311,948.70 = 124,918.12 : x - Step 2: Convert to fraction form
208,207.72/311,948.70 = 124,918.12/x - Step 3: Cross multiply
208,207.72x = 311,948.70 × 124,918.12 - Step 4: Simplify right side
208,207.72x = 38,968,045,140.44 - Step 5: Solve for x
x = 38,968,045,140.44/208,207.72 - Step 6: Final answer
x = 187,159.46
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1.5x scale
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.