Finding the Fourth Proportional to 280,935.08, 387,715.73 and 160,115.29
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Solution
The fourth proportional to 280,935.08, 387,715.73 and 160,115.29 is: 220,973.53
Step by Step Solution
- Step 1: Write the proportion equation
280,935.08 : 387,715.73 = 160,115.29 : x - Step 2: Convert to fraction form
280,935.08/387,715.73 = 160,115.29/x - Step 3: Cross multiply
280,935.08x = 387,715.73 × 160,115.29 - Step 4: Simplify right side
280,935.08x = 62,079,216,546.51 - Step 5: Solve for x
x = 62,079,216,546.51/280,935.08 - Step 6: Final answer
x = 220,973.53
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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.