Finding the Fourth Proportional to 103,453.76, 155,257.92 and 40,283.84
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Solution
The fourth proportional to 103,453.76, 155,257.92 and 40,283.84 is: 60,455.85
Step by Step Solution
- Step 1: Write the proportion equation
103,453.76 : 155,257.92 = 40,283.84 : x - Step 2: Convert to fraction form
103,453.76/155,257.92 = 40,283.84/x - Step 3: Cross multiply
103,453.76x = 155,257.92 × 40,283.84 - Step 4: Simplify right side
103,453.76x = 6,254,385,208.01 - Step 5: Solve for x
x = 6,254,385,208.01/103,453.76 - Step 6: Final answer
x = 60,455.85
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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.