Finding the Fourth Proportional to 405,497.24, 559,572.20 and 221,740.28
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Solution
The fourth proportional to 405,497.24, 559,572.20 and 221,740.28 is: 305,993.94
Step by Step Solution
- Step 1: Write the proportion equation
405,497.24 : 559,572.20 = 221,740.28 : x - Step 2: Convert to fraction form
405,497.24/559,572.20 = 221,740.28/x - Step 3: Cross multiply
405,497.24x = 559,572.20 × 221,740.28 - Step 4: Simplify right side
405,497.24x = 124,079,696,308.22 - Step 5: Solve for x
x = 124,079,696,308.22/405,497.24 - Step 6: Final answer
x = 305,993.94
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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.