Finding the Fourth Proportional to 405,257.40, 559,324.68 and 235,589.88
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Solution
The fourth proportional to 405,257.40, 559,324.68 and 235,589.88 is: 325,154.42
Step by Step Solution
- Step 1: Write the proportion equation
405,257.40 : 559,324.68 = 235,589.88 : x - Step 2: Convert to fraction form
405,257.40/559,324.68 = 235,589.88/x - Step 3: Cross multiply
405,257.40x = 559,324.68 × 235,589.88 - Step 4: Simplify right side
405,257.40x = 131,771,234,242.24 - Step 5: Solve for x
x = 131,771,234,242.24/405,257.40 - Step 6: Final answer
x = 325,154.42
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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.