Finding the Fourth Proportional to 417,115.36, 575,619.78 and 226,128.70
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Solution
The fourth proportional to 417,115.36, 575,619.78 and 226,128.70 is: 312,057.92
Step by Step Solution
- Step 1: Write the proportion equation
417,115.36 : 575,619.78 = 226,128.70 : x - Step 2: Convert to fraction form
417,115.36/575,619.78 = 226,128.70/x - Step 3: Cross multiply
417,115.36x = 575,619.78 × 226,128.70 - Step 4: Simplify right side
417,115.36x = 130,164,152,545.69 - Step 5: Solve for x
x = 130,164,152,545.69/417,115.36 - Step 6: Final answer
x = 312,057.92
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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.