Finding the Fourth Proportional to 312,247.08, 430,900.20 and 169,005.96
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Solution
The fourth proportional to 312,247.08, 430,900.20 and 169,005.96 is: 233,227.81
Step by Step Solution
- Step 1: Write the proportion equation
312,247.08 : 430,900.20 = 169,005.96 : x - Step 2: Convert to fraction form
312,247.08/430,900.20 = 169,005.96/x - Step 3: Cross multiply
312,247.08x = 430,900.20 × 169,005.96 - Step 4: Simplify right side
312,247.08x = 72,824,701,965.19 - Step 5: Solve for x
x = 72,824,701,965.19/312,247.08 - Step 6: Final answer
x = 233,227.81
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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.