Finding the Fourth Proportional to 440,977.18, 661,464.48 and 121,129.35
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Solution
The fourth proportional to 440,977.18, 661,464.48 and 121,129.35 is: 181,693.68
Step by Step Solution
- Step 1: Write the proportion equation
440,977.18 : 661,464.48 = 121,129.35 : x - Step 2: Convert to fraction form
440,977.18/661,464.48 = 121,129.35/x - Step 3: Cross multiply
440,977.18x = 661,464.48 × 121,129.35 - Step 4: Simplify right side
440,977.18x = 80,122,764,990.98 - Step 5: Solve for x
x = 80,122,764,990.98/440,977.18 - Step 6: Final answer
x = 181,693.68
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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.