Finding the Fourth Proportional to 392,911.24, 589,033.68 and 140,115.64
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Solution
The fourth proportional to 392,911.24, 589,033.68 and 140,115.64 is: 210,054.65
Step by Step Solution
- Step 1: Write the proportion equation
392,911.24 : 589,033.68 = 140,115.64 : x - Step 2: Convert to fraction form
392,911.24/589,033.68 = 140,115.64/x - Step 3: Cross multiply
392,911.24x = 589,033.68 × 140,115.64 - Step 4: Simplify right side
392,911.24x = 82,532,831,054.76 - Step 5: Solve for x
x = 82,532,831,054.76/392,911.24 - Step 6: Final answer
x = 210,054.65
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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.