Finding the Fourth Proportional to 209,814.98, 314,753.75 and 74,868.53
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Solution
The fourth proportional to 209,814.98, 314,753.75 and 74,868.53 is: 112,313.96
Step by Step Solution
- Step 1: Write the proportion equation
209,814.98 : 314,753.75 = 74,868.53 : x - Step 2: Convert to fraction form
209,814.98/314,753.75 = 74,868.53/x - Step 3: Cross multiply
209,814.98x = 314,753.75 × 74,868.53 - Step 4: Simplify right side
209,814.98x = 23,565,150,987.03 - Step 5: Solve for x
x = 23,565,150,987.03/209,814.98 - Step 6: Final answer
x = 112,313.96
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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.