Finding the Fourth Proportional to 280,538.56, 387,163.97 and 159,718.96
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Solution
The fourth proportional to 280,538.56, 387,163.97 and 159,718.96 is: 220,423.98
Step by Step Solution
- Step 1: Write the proportion equation
280,538.56 : 387,163.97 = 159,718.96 : x - Step 2: Convert to fraction form
280,538.56/387,163.97 = 159,718.96/x - Step 3: Cross multiply
280,538.56x = 387,163.97 × 159,718.96 - Step 4: Simplify right side
280,538.56x = 61,837,426,637.87 - Step 5: Solve for x
x = 61,837,426,637.87/280,538.56 - Step 6: Final answer
x = 220,423.98
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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.