Finding the Fourth Proportional to 257,846.46, 355,790.18 and 143,125.98
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Solution
The fourth proportional to 257,846.46, 355,790.18 and 143,125.98 is: 197,492.79
Step by Step Solution
- Step 1: Write the proportion equation
257,846.46 : 355,790.18 = 143,125.98 : x - Step 2: Convert to fraction form
257,846.46/355,790.18 = 143,125.98/x - Step 3: Cross multiply
257,846.46x = 355,790.18 × 143,125.98 - Step 4: Simplify right side
257,846.46x = 50,922,817,471.25 - Step 5: Solve for x
x = 50,922,817,471.25/257,846.46 - Step 6: Final answer
x = 197,492.79
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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.