Finding the Fourth Proportional to 260,907.28, 391,385.52 and 83,372.09
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Solution
The fourth proportional to 260,907.28, 391,385.52 and 83,372.09 is: 125,065.99
Step by Step Solution
- Step 1: Write the proportion equation
260,907.28 : 391,385.52 = 83,372.09 : x - Step 2: Convert to fraction form
260,907.28/391,385.52 = 83,372.09/x - Step 3: Cross multiply
260,907.28x = 391,385.52 × 83,372.09 - Step 4: Simplify right side
260,907.28x = 32,630,626,841.21 - Step 5: Solve for x
x = 32,630,626,841.21/260,907.28 - Step 6: Final answer
x = 125,065.99
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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.