Finding the Fourth Proportional to 309,387.26, 464,081.26 and 84,749.63
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Solution
The fourth proportional to 309,387.26, 464,081.26 and 84,749.63 is: 127,124.55
Step by Step Solution
- Step 1: Write the proportion equation
309,387.26 : 464,081.26 = 84,749.63 : x - Step 2: Convert to fraction form
309,387.26/464,081.26 = 84,749.63/x - Step 3: Cross multiply
309,387.26x = 464,081.26 × 84,749.63 - Step 4: Simplify right side
309,387.26x = 39,330,716,023.26 - Step 5: Solve for x
x = 39,330,716,023.26/309,387.26 - Step 6: Final answer
x = 127,124.55
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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.