Finding the Fourth Proportional to 387,495.63, 534,808.17 and 226,350.18
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Solution
The fourth proportional to 387,495.63, 534,808.17 and 226,350.18 is: 312,400.75
Step by Step Solution
- Step 1: Write the proportion equation
387,495.63 : 534,808.17 = 226,350.18 : x - Step 2: Convert to fraction form
387,495.63/534,808.17 = 226,350.18/x - Step 3: Cross multiply
387,495.63x = 534,808.17 × 226,350.18 - Step 4: Simplify right side
387,495.63x = 121,053,925,544.97 - Step 5: Solve for x
x = 121,053,925,544.97/387,495.63 - Step 6: Final answer
x = 312,400.75
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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.