Finding the Fourth Proportional to 420,896.65, 631,438.27 and 121,353.87
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Solution
The fourth proportional to 420,896.65, 631,438.27 and 121,353.87 is: 182,057.70
Step by Step Solution
- Step 1: Write the proportion equation
420,896.65 : 631,438.27 = 121,353.87 : x - Step 2: Convert to fraction form
420,896.65/631,438.27 = 121,353.87/x - Step 3: Cross multiply
420,896.65x = 631,438.27 × 121,353.87 - Step 4: Simplify right side
420,896.65x = 76,627,477,730.60 - Step 5: Solve for x
x = 76,627,477,730.60/420,896.65 - Step 6: Final answer
x = 182,057.70
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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.