Finding the Fourth Proportional to 331,471.80, 497,207.70 and 144,847.80
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Solution
The fourth proportional to 331,471.80, 497,207.70 and 144,847.80 is: 217,271.70
Step by Step Solution
- Step 1: Write the proportion equation
331,471.80 : 497,207.70 = 144,847.80 : x - Step 2: Convert to fraction form
331,471.80/497,207.70 = 144,847.80/x - Step 3: Cross multiply
331,471.80x = 497,207.70 × 144,847.80 - Step 4: Simplify right side
331,471.80x = 72,019,441,488.06 - Step 5: Solve for x
x = 72,019,441,488.06/331,471.80 - Step 6: Final answer
x = 217,271.70
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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.