Finding the Fourth Proportional to 307,917.40, 461,438.70 and 214,313.80
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Solution
The fourth proportional to 307,917.40, 461,438.70 and 214,313.80 is: 321,166.26
Step by Step Solution
- Step 1: Write the proportion equation
307,917.40 : 461,438.70 = 214,313.80 : x - Step 2: Convert to fraction form
307,917.40/461,438.70 = 214,313.80/x - Step 3: Cross multiply
307,917.40x = 461,438.70 × 214,313.80 - Step 4: Simplify right side
307,917.40x = 98,892,681,264.06 - Step 5: Solve for x
x = 98,892,681,264.06/307,917.40 - Step 6: Final answer
x = 321,166.26
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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.