Finding the Fourth Proportional to 208,319.36, 312,471.84 and 58,560.80
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Solution
The fourth proportional to 208,319.36, 312,471.84 and 58,560.80 is: 87,839.18
Step by Step Solution
- Step 1: Write the proportion equation
208,319.36 : 312,471.84 = 58,560.80 : x - Step 2: Convert to fraction form
208,319.36/312,471.84 = 58,560.80/x - Step 3: Cross multiply
208,319.36x = 312,471.84 × 58,560.80 - Step 4: Simplify right side
208,319.36x = 18,298,600,927.87 - Step 5: Solve for x
x = 18,298,600,927.87/208,319.36 - Step 6: Final answer
x = 87,839.18
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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.