Finding the Fourth Proportional to 256,731.60, 385,163.20 and 106,922.08
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Solution
The fourth proportional to 256,731.60, 385,163.20 and 106,922.08 is: 160,410.52
Step by Step Solution
- Step 1: Write the proportion equation
256,731.60 : 385,163.20 = 106,922.08 : x - Step 2: Convert to fraction form
256,731.60/385,163.20 = 106,922.08/x - Step 3: Cross multiply
256,731.60x = 385,163.20 × 106,922.08 - Step 4: Simplify right side
256,731.60x = 41,182,450,483.46 - Step 5: Solve for x
x = 41,182,450,483.46/256,731.60 - Step 6: Final answer
x = 160,410.52
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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.