Finding the Fourth Proportional to 405,336.24, 559,366.26 and 221,575.10
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Solution
The fourth proportional to 405,336.24, 559,366.26 and 221,575.10 is: 305,774.87
Step by Step Solution
- Step 1: Write the proportion equation
405,336.24 : 559,366.26 = 221,575.10 : x - Step 2: Convert to fraction form
405,336.24/559,366.26 = 221,575.10/x - Step 3: Cross multiply
405,336.24x = 559,366.26 × 221,575.10 - Step 4: Simplify right side
405,336.24x = 123,941,634,996.13 - Step 5: Solve for x
x = 123,941,634,996.13/405,336.24 - Step 6: Final answer
x = 305,774.87
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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.