Finding the Fourth Proportional to 408,515.80, 563,743.62 and 227,223.82
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Solution
The fourth proportional to 408,515.80, 563,743.62 and 227,223.82 is: 313,564.32
Step by Step Solution
- Step 1: Write the proportion equation
408,515.80 : 563,743.62 = 227,223.82 : x - Step 2: Convert to fraction form
408,515.80/563,743.62 = 227,223.82/x - Step 3: Cross multiply
408,515.80x = 563,743.62 × 227,223.82 - Step 4: Simplify right side
408,515.80x = 128,095,978,837.03 - Step 5: Solve for x
x = 128,095,978,837.03/408,515.80 - Step 6: Final answer
x = 313,564.32
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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.