Finding the Fourth Proportional to 320,438.60, 480,690.48 and 110,049.20
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Solution
The fourth proportional to 320,438.60, 480,690.48 and 110,049.20 is: 165,084.99
Step by Step Solution
- Step 1: Write the proportion equation
320,438.60 : 480,690.48 = 110,049.20 : x - Step 2: Convert to fraction form
320,438.60/480,690.48 = 110,049.20/x - Step 3: Cross multiply
320,438.60x = 480,690.48 × 110,049.20 - Step 4: Simplify right side
320,438.60x = 52,899,602,771.62 - Step 5: Solve for x
x = 52,899,602,771.62/320,438.60 - Step 6: Final answer
x = 165,084.99
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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.