Finding the Fourth Proportional to 236,779.26, 326,754.18 and 129,355.44
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Solution
The fourth proportional to 236,779.26, 326,754.18 and 129,355.44 is: 178,509.85
Step by Step Solution
- Step 1: Write the proportion equation
236,779.26 : 326,754.18 = 129,355.44 : x - Step 2: Convert to fraction form
236,779.26/326,754.18 = 129,355.44/x - Step 3: Cross multiply
236,779.26x = 326,754.18 × 129,355.44 - Step 4: Simplify right side
236,779.26x = 42,267,430,725.74 - Step 5: Solve for x
x = 42,267,430,725.74/236,779.26 - Step 6: Final answer
x = 178,509.85
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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.