Finding the Fourth Proportional to 354,399.16, 531,442.68 and 129,701.20
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Solution
The fourth proportional to 354,399.16, 531,442.68 and 129,701.20 is: 194,494.69
Step by Step Solution
- Step 1: Write the proportion equation
354,399.16 : 531,442.68 = 129,701.20 : x - Step 2: Convert to fraction form
354,399.16/531,442.68 = 129,701.20/x - Step 3: Cross multiply
354,399.16x = 531,442.68 × 129,701.20 - Step 4: Simplify right side
354,399.16x = 68,928,753,327.22 - Step 5: Solve for x
x = 68,928,753,327.22/354,399.16 - Step 6: Final answer
x = 194,494.69
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.