Finding the Fourth Proportional to 301,278.18, 451,919.88 and 76,638.84
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Solution
The fourth proportional to 301,278.18, 451,919.88 and 76,638.84 is: 114,958.92
Step by Step Solution
- Step 1: Write the proportion equation
301,278.18 : 451,919.88 = 76,638.84 : x - Step 2: Convert to fraction form
301,278.18/451,919.88 = 76,638.84/x - Step 3: Cross multiply
301,278.18x = 451,919.88 × 76,638.84 - Step 4: Simplify right side
301,278.18x = 34,634,615,376.14 - Step 5: Solve for x
x = 34,634,615,376.14/301,278.18 - Step 6: Final answer
x = 114,958.92
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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.