Finding the Fourth Proportional to 372,039.12, 513,419.04 and 202,272.84
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Solution
The fourth proportional to 372,039.12, 513,419.04 and 202,272.84 is: 279,139.27
Step by Step Solution
- Step 1: Write the proportion equation
372,039.12 : 513,419.04 = 202,272.84 : x - Step 2: Convert to fraction form
372,039.12/513,419.04 = 202,272.84/x - Step 3: Cross multiply
372,039.12x = 513,419.04 × 202,272.84 - Step 4: Simplify right side
372,039.12x = 103,850,727,330.87 - Step 5: Solve for x
x = 103,850,727,330.87/372,039.12 - Step 6: Final answer
x = 279,139.27
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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.