Finding the Fourth Proportional to 440,977.98, 661,465.68 and 121,130.15
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Solution
The fourth proportional to 440,977.98, 661,465.68 and 121,130.15 is: 181,694.87
Step by Step Solution
- Step 1: Write the proportion equation
440,977.98 : 661,465.68 = 121,130.15 : x - Step 2: Convert to fraction form
440,977.98/661,465.68 = 121,130.15/x - Step 3: Cross multiply
440,977.98x = 661,465.68 × 121,130.15 - Step 4: Simplify right side
440,977.98x = 80,123,435,757.18 - Step 5: Solve for x
x = 80,123,435,757.18/440,977.98 - Step 6: Final answer
x = 181,694.87
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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.