Finding the Fourth Proportional to 436,771.64, 655,157.24 and 121,228.46
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Solution
The fourth proportional to 436,771.64, 655,157.24 and 121,228.46 is: 181,842.63
Step by Step Solution
- Step 1: Write the proportion equation
436,771.64 : 655,157.24 = 121,228.46 : x - Step 2: Convert to fraction form
436,771.64/655,157.24 = 121,228.46/x - Step 3: Cross multiply
436,771.64x = 655,157.24 × 121,228.46 - Step 4: Simplify right side
436,771.64x = 79,423,703,263.05 - Step 5: Solve for x
x = 79,423,703,263.05/436,771.64 - Step 6: Final answer
x = 181,842.63
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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.