Finding the Fourth Proportional to 156,278.24, 215,525.04 and 122,685.92
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Solution
The fourth proportional to 156,278.24, 215,525.04 and 122,685.92 is: 169,197.50
Step by Step Solution
- Step 1: Write the proportion equation
156,278.24 : 215,525.04 = 122,685.92 : x - Step 2: Convert to fraction form
156,278.24/215,525.04 = 122,685.92/x - Step 3: Cross multiply
156,278.24x = 215,525.04 × 122,685.92 - Step 4: Simplify right side
156,278.24x = 26,441,887,815.44 - Step 5: Solve for x
x = 26,441,887,815.44/156,278.24 - Step 6: Final answer
x = 169,197.50
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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.