Finding the Fourth Proportional to 290,688.72, 435,534.84 and 230,901.62
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Solution
The fourth proportional to 290,688.72, 435,534.84 and 230,901.62 is: 345,956.66
Step by Step Solution
- Step 1: Write the proportion equation
290,688.72 : 435,534.84 = 230,901.62 : x - Step 2: Convert to fraction form
290,688.72/435,534.84 = 230,901.62/x - Step 3: Cross multiply
290,688.72x = 435,534.84 × 230,901.62 - Step 4: Simplify right side
290,688.72x = 100,565,700,122.44 - Step 5: Solve for x
x = 100,565,700,122.44/290,688.72 - Step 6: Final answer
x = 345,956.66
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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.