Finding the Fourth Proportional to 226,931.71, 313,163.19 and 124,955.05
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Solution
The fourth proportional to 226,931.71, 313,163.19 and 124,955.05 is: 172,436.55
Step by Step Solution
- Step 1: Write the proportion equation
226,931.71 : 313,163.19 = 124,955.05 : x - Step 2: Convert to fraction form
226,931.71/313,163.19 = 124,955.05/x - Step 3: Cross multiply
226,931.71x = 313,163.19 × 124,955.05 - Step 4: Simplify right side
226,931.71x = 39,131,322,064.61 - Step 5: Solve for x
x = 39,131,322,064.61/226,931.71 - Step 6: Final answer
x = 172,436.55
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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.