Finding the Fourth Proportional to 351,421.68, 484,961.16 and 190,276.80
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Solution
The fourth proportional to 351,421.68, 484,961.16 and 190,276.80 is: 262,581.57
Step by Step Solution
- Step 1: Write the proportion equation
351,421.68 : 484,961.16 = 190,276.80 : x - Step 2: Convert to fraction form
351,421.68/484,961.16 = 190,276.80/x - Step 3: Cross multiply
351,421.68x = 484,961.16 × 190,276.80 - Step 4: Simplify right side
351,421.68x = 92,276,857,649.09 - Step 5: Solve for x
x = 92,276,857,649.09/351,421.68 - Step 6: Final answer
x = 262,581.57
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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.