Finding the Fourth Proportional to 440,976.85, 661,463.99 and 121,129.02
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Solution
The fourth proportional to 440,976.85, 661,463.99 and 121,129.02 is: 181,693.18
Step by Step Solution
- Step 1: Write the proportion equation
440,976.85 : 661,463.99 = 121,129.02 : x - Step 2: Convert to fraction form
440,976.85/661,463.99 = 121,129.02/x - Step 3: Cross multiply
440,976.85x = 661,463.99 × 121,129.02 - Step 4: Simplify right side
440,976.85x = 80,122,487,513.13 - Step 5: Solve for x
x = 80,122,487,513.13/440,976.85 - Step 6: Final answer
x = 181,693.18
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.