Finding the Fourth Proportional to 351,720.18, 485,374.28 and 190,575.18
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Solution
The fourth proportional to 351,720.18, 485,374.28 and 190,575.18 is: 262,993.98
Step by Step Solution
- Step 1: Write the proportion equation
351,720.18 : 485,374.28 = 190,575.18 : x - Step 2: Convert to fraction form
351,720.18/485,374.28 = 190,575.18/x - Step 3: Cross multiply
351,720.18x = 485,374.28 × 190,575.18 - Step 4: Simplify right side
351,720.18x = 92,500,290,778.37 - Step 5: Solve for x
x = 92,500,290,778.37/351,720.18 - Step 6: Final answer
x = 262,993.98
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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.