Finding the Fourth Proportional to 400,393.12, 552,542.46 and 219,105.08
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Solution
The fourth proportional to 400,393.12, 552,542.46 and 219,105.08 is: 302,364.99
Step by Step Solution
- Step 1: Write the proportion equation
400,393.12 : 552,542.46 = 219,105.08 : x - Step 2: Convert to fraction form
400,393.12/552,542.46 = 219,105.08/x - Step 3: Cross multiply
400,393.12x = 552,542.46 × 219,105.08 - Step 4: Simplify right side
400,393.12x = 121,064,859,901.70 - Step 5: Solve for x
x = 121,064,859,901.70/400,393.12 - Step 6: Final answer
x = 302,364.99
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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.