Finding the Fourth Proportional to 200,115.48, 300,024.18 and 121,210.68
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Solution
The fourth proportional to 200,115.48, 300,024.18 and 121,210.68 is: 181,725.75
Step by Step Solution
- Step 1: Write the proportion equation
200,115.48 : 300,024.18 = 121,210.68 : x - Step 2: Convert to fraction form
200,115.48/300,024.18 = 121,210.68/x - Step 3: Cross multiply
200,115.48x = 300,024.18 × 121,210.68 - Step 4: Simplify right side
200,115.48x = 36,366,134,874.24 - Step 5: Solve for x
x = 36,366,134,874.24/200,115.48 - Step 6: Final answer
x = 181,725.75
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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.