Finding the Fourth Proportional to 274,719.76, 379,122.60 and 153,866.14
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Solution
The fourth proportional to 274,719.76, 379,122.60 and 153,866.14 is: 212,340.50
Step by Step Solution
- Step 1: Write the proportion equation
274,719.76 : 379,122.60 = 153,866.14 : x - Step 2: Convert to fraction form
274,719.76/379,122.60 = 153,866.14/x - Step 3: Cross multiply
274,719.76x = 379,122.60 × 153,866.14 - Step 4: Simplify right side
274,719.76x = 58,334,131,048.76 - Step 5: Solve for x
x = 58,334,131,048.76/274,719.76 - Step 6: Final answer
x = 212,340.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.