Finding the Fourth Proportional to 307,571.76, 461,782.60 and 212,567.87
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Solution
The fourth proportional to 307,571.76, 461,782.60 and 212,567.87 is: 319,145.50
Step by Step Solution
- Step 1: Write the proportion equation
307,571.76 : 461,782.60 = 212,567.87 : x - Step 2: Convert to fraction form
307,571.76/461,782.60 = 212,567.87/x - Step 3: Cross multiply
307,571.76x = 461,782.60 × 212,567.87 - Step 4: Simplify right side
307,571.76x = 98,160,144,308.10 - Step 5: Solve for x
x = 98,160,144,308.10/307,571.76 - Step 6: Final answer
x = 319,145.50
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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.