Finding the Fourth Proportional to 292,624.15, 439,120.74 and 115,108.09
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Solution
The fourth proportional to 292,624.15, 439,120.74 and 115,108.09 is: 172,734.72
Step by Step Solution
- Step 1: Write the proportion equation
292,624.15 : 439,120.74 = 115,108.09 : x - Step 2: Convert to fraction form
292,624.15/439,120.74 = 115,108.09/x - Step 3: Cross multiply
292,624.15x = 439,120.74 × 115,108.09 - Step 4: Simplify right side
292,624.15x = 50,546,349,660.79 - Step 5: Solve for x
x = 50,546,349,660.79/292,624.15 - Step 6: Final answer
x = 172,734.72
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1.5x scale
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.