Finding the Fourth Proportional to 486,939.10, 730,487.12 and 149,979.64
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Solution
The fourth proportional to 486,939.10, 730,487.12 and 149,979.64 is: 224,993.63
Step by Step Solution
- Step 1: Write the proportion equation
486,939.10 : 730,487.12 = 149,979.64 : x - Step 2: Convert to fraction form
486,939.10/730,487.12 = 149,979.64/x - Step 3: Cross multiply
486,939.10x = 730,487.12 × 149,979.64 - Step 4: Simplify right side
486,939.10x = 109,558,195,282.24 - Step 5: Solve for x
x = 109,558,195,282.24/486,939.10 - Step 6: Final answer
x = 224,993.63
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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.