Finding the Fourth Proportional to 372,111.20, 513,507.60 and 202,343.84
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Solution
The fourth proportional to 372,111.20, 513,507.60 and 202,343.84 is: 279,231.31
Step by Step Solution
- Step 1: Write the proportion equation
372,111.20 : 513,507.60 = 202,343.84 : x - Step 2: Convert to fraction form
372,111.20/513,507.60 = 202,343.84/x - Step 3: Cross multiply
372,111.20x = 513,507.60 × 202,343.84 - Step 4: Simplify right side
372,111.20x = 103,905,099,653.18 - Step 5: Solve for x
x = 103,905,099,653.18/372,111.20 - Step 6: Final answer
x = 279,231.31
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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.