Finding the Fourth Proportional to 265,325.12, 397,987.68 and 87,784.48
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Solution
The fourth proportional to 265,325.12, 397,987.68 and 87,784.48 is: 131,676.72
Step by Step Solution
- Step 1: Write the proportion equation
265,325.12 : 397,987.68 = 87,784.48 : x - Step 2: Convert to fraction form
265,325.12/397,987.68 = 87,784.48/x - Step 3: Cross multiply
265,325.12x = 397,987.68 × 87,784.48 - Step 4: Simplify right side
265,325.12x = 34,937,141,535.21 - Step 5: Solve for x
x = 34,937,141,535.21/265,325.12 - Step 6: Final answer
x = 131,676.72
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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.