Finding the Fourth Proportional to 306,709.05, 423,277.83 and 185,860.92
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Solution
The fourth proportional to 306,709.05, 423,277.83 and 185,860.92 is: 256,499.79
Step by Step Solution
- Step 1: Write the proportion equation
306,709.05 : 423,277.83 = 185,860.92 : x - Step 2: Convert to fraction form
306,709.05/423,277.83 = 185,860.92/x - Step 3: Cross multiply
306,709.05x = 423,277.83 × 185,860.92 - Step 4: Simplify right side
306,709.05x = 78,670,806,899.40 - Step 5: Solve for x
x = 78,670,806,899.40/306,709.05 - Step 6: Final answer
x = 256,499.79
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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.