Finding the Fourth Proportional to 405,901.48, 609,027.26 and 218,869.80
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Solution
The fourth proportional to 405,901.48, 609,027.26 and 218,869.80 is: 328,399.08
Step by Step Solution
- Step 1: Write the proportion equation
405,901.48 : 609,027.26 = 218,869.80 : x - Step 2: Convert to fraction form
405,901.48/609,027.26 = 218,869.80/x - Step 3: Cross multiply
405,901.48x = 609,027.26 × 218,869.80 - Step 4: Simplify right side
405,901.48x = 133,297,674,590.75 - Step 5: Solve for x
x = 133,297,674,590.75/405,901.48 - Step 6: Final answer
x = 328,399.08
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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.