Finding the Fourth Proportional to 368,974.26, 509,010.48 and 215,917.74
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Solution
The fourth proportional to 368,974.26, 509,010.48 and 215,917.74 is: 297,864.66
Step by Step Solution
- Step 1: Write the proportion equation
368,974.26 : 509,010.48 = 215,917.74 : x - Step 2: Convert to fraction form
368,974.26/509,010.48 = 215,917.74/x - Step 3: Cross multiply
368,974.26x = 509,010.48 × 215,917.74 - Step 4: Simplify right side
368,974.26x = 109,904,392,477.92 - Step 5: Solve for x
x = 109,904,392,477.92/368,974.26 - Step 6: Final answer
x = 297,864.66
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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.