Finding the Fourth Proportional to 405,378.84, 559,365.68 and 233,231.42
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Solution
The fourth proportional to 405,378.84, 559,365.68 and 233,231.42 is: 321,826.50
Step by Step Solution
- Step 1: Write the proportion equation
405,378.84 : 559,365.68 = 233,231.42 : x - Step 2: Convert to fraction form
405,378.84/559,365.68 = 233,231.42/x - Step 3: Cross multiply
405,378.84x = 559,365.68 × 233,231.42 - Step 4: Simplify right side
405,378.84x = 130,461,651,845.67 - Step 5: Solve for x
x = 130,461,651,845.67/405,378.84 - Step 6: Final answer
x = 321,826.50
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.