Finding the Fourth Proportional to 313,867.74, 433,132.38 and 170,631.36
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Solution
The fourth proportional to 313,867.74, 433,132.38 and 170,631.36 is: 235,468.50
Step by Step Solution
- Step 1: Write the proportion equation
313,867.74 : 433,132.38 = 170,631.36 : x - Step 2: Convert to fraction form
313,867.74/433,132.38 = 170,631.36/x - Step 3: Cross multiply
313,867.74x = 433,132.38 × 170,631.36 - Step 4: Simplify right side
313,867.74x = 73,905,967,059.44 - Step 5: Solve for x
x = 73,905,967,059.44/313,867.74 - Step 6: Final answer
x = 235,468.50
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1.5x scale
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.