Finding the Fourth Proportional to 428,206.70, 590,917.38 and 237,215.99
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Solution
The fourth proportional to 428,206.70, 590,917.38 and 237,215.99 is: 327,353.71
Step by Step Solution
- Step 1: Write the proportion equation
428,206.70 : 590,917.38 = 237,215.99 : x - Step 2: Convert to fraction form
428,206.70/590,917.38 = 237,215.99/x - Step 3: Cross multiply
428,206.70x = 590,917.38 × 237,215.99 - Step 4: Simplify right side
428,206.70x = 140,175,051,892.64 - Step 5: Solve for x
x = 140,175,051,892.64/428,206.70 - Step 6: Final answer
x = 327,353.71
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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.