Finding the Fourth Proportional to 405,037.13, 558,951.23 and 226,189.13
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Solution
The fourth proportional to 405,037.13, 558,951.23 and 226,189.13 is: 312,140.99
Step by Step Solution
- Step 1: Write the proportion equation
405,037.13 : 558,951.23 = 226,189.13 : x - Step 2: Convert to fraction form
405,037.13/558,951.23 = 226,189.13/x - Step 3: Cross multiply
405,037.13x = 558,951.23 × 226,189.13 - Step 4: Simplify right side
405,037.13x = 126,428,690,196.85 - Step 5: Solve for x
x = 126,428,690,196.85/405,037.13 - Step 6: Final answer
x = 312,140.99
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1.5x scale
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.