Finding the Fourth Proportional to 405,521.28, 608,368.86 and 121,234.08
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Solution
The fourth proportional to 405,521.28, 608,368.86 and 121,234.08 is: 181,877.11
Step by Step Solution
- Step 1: Write the proportion equation
405,521.28 : 608,368.86 = 121,234.08 : x - Step 2: Convert to fraction form
405,521.28/608,368.86 = 121,234.08/x - Step 3: Cross multiply
405,521.28x = 608,368.86 × 121,234.08 - Step 4: Simplify right side
405,521.28x = 73,755,039,042.75 - Step 5: Solve for x
x = 73,755,039,042.75/405,521.28 - Step 6: Final answer
x = 181,877.11
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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.