Finding the Fourth Proportional to 538,617.74, 807,921.74 and 206,193.74
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Solution
The fourth proportional to 538,617.74, 807,921.74 and 206,193.74 is: 309,288.74
Step by Step Solution
- Step 1: Write the proportion equation
538,617.74 : 807,921.74 = 206,193.74 : x - Step 2: Convert to fraction form
538,617.74/807,921.74 = 206,193.74/x - Step 3: Cross multiply
538,617.74x = 807,921.74 × 206,193.74 - Step 4: Simplify right side
538,617.74x = 166,588,401,673.78 - Step 5: Solve for x
x = 166,588,401,673.78/538,617.74 - Step 6: Final answer
x = 309,288.74
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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.