Finding the Fourth Proportional to 159,865.76, 239,771.28 and 53,237.60
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Solution
The fourth proportional to 159,865.76, 239,771.28 and 53,237.60 is: 79,847.29
Step by Step Solution
- Step 1: Write the proportion equation
159,865.76 : 239,771.28 = 53,237.60 : x - Step 2: Convert to fraction form
159,865.76/239,771.28 = 53,237.60/x - Step 3: Cross multiply
159,865.76x = 239,771.28 × 53,237.60 - Step 4: Simplify right side
159,865.76x = 12,764,847,496.13 - Step 5: Solve for x
x = 12,764,847,496.13/159,865.76 - Step 6: Final answer
x = 79,847.29
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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.