Finding the Fourth Proportional to 141,803.30, 212,690.55 and 48,307.70
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Solution
The fourth proportional to 141,803.30, 212,690.55 and 48,307.70 is: 72,456.64
Step by Step Solution
- Step 1: Write the proportion equation
141,803.30 : 212,690.55 = 48,307.70 : x - Step 2: Convert to fraction form
141,803.30/212,690.55 = 48,307.70/x - Step 3: Cross multiply
141,803.30x = 212,690.55 × 48,307.70 - Step 4: Simplify right side
141,803.30x = 10,274,591,282.24 - Step 5: Solve for x
x = 10,274,591,282.24/141,803.30 - Step 6: Final answer
x = 72,456.64
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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.