Finding the Fourth Proportional to 421,171.63, 631,526.08 and 207,469.33
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Solution
The fourth proportional to 421,171.63, 631,526.08 and 207,469.33 is: 311,090.02
Step by Step Solution
- Step 1: Write the proportion equation
421,171.63 : 631,526.08 = 207,469.33 : x - Step 2: Convert to fraction form
421,171.63/631,526.08 = 207,469.33/x - Step 3: Cross multiply
421,171.63x = 631,526.08 × 207,469.33 - Step 4: Simplify right side
421,171.63x = 131,022,292,695.13 - Step 5: Solve for x
x = 131,022,292,695.13/421,171.63 - Step 6: Final answer
x = 311,090.02
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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.