Finding the Fourth Proportional to 422,352.02, 633,525.96 and 138,236.12
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Solution
The fourth proportional to 422,352.02, 633,525.96 and 138,236.12 is: 207,353.50
Step by Step Solution
- Step 1: Write the proportion equation
422,352.02 : 633,525.96 = 138,236.12 : x - Step 2: Convert to fraction form
422,352.02/633,525.96 = 138,236.12/x - Step 3: Cross multiply
422,352.02x = 633,525.96 × 138,236.12 - Step 4: Simplify right side
422,352.02x = 87,576,169,578.58 - Step 5: Solve for x
x = 87,576,169,578.58/422,352.02 - Step 6: Final answer
x = 207,353.50
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1.5x scale
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.