Finding the Fourth Proportional to 393,196.70, 589,645.16 and 140,429.99
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Solution
The fourth proportional to 393,196.70, 589,645.16 and 140,429.99 is: 210,591.45
Step by Step Solution
- Step 1: Write the proportion equation
393,196.70 : 589,645.16 = 140,429.99 : x - Step 2: Convert to fraction form
393,196.70/589,645.16 = 140,429.99/x - Step 3: Cross multiply
393,196.70x = 589,645.16 × 140,429.99 - Step 4: Simplify right side
393,196.70x = 82,803,860,271.97 - Step 5: Solve for x
x = 82,803,860,271.97/393,196.70 - Step 6: Final answer
x = 210,591.45
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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.