Finding the Fourth Proportional to 300,883.12, 415,214.99 and 163,059.09
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Solution
The fourth proportional to 300,883.12, 415,214.99 and 163,059.09 is: 225,019.52
Step by Step Solution
- Step 1: Write the proportion equation
300,883.12 : 415,214.99 = 163,059.09 : x - Step 2: Convert to fraction form
300,883.12/415,214.99 = 163,059.09/x - Step 3: Cross multiply
300,883.12x = 415,214.99 × 163,059.09 - Step 4: Simplify right side
300,883.12x = 67,704,576,347.68 - Step 5: Solve for x
x = 67,704,576,347.68/300,883.12 - Step 6: Final answer
x = 225,019.52
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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.