Finding the Fourth Proportional to 306,538.05, 423,034.47 and 185,610.99
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Solution
The fourth proportional to 306,538.05, 423,034.47 and 185,610.99 is: 256,150.41
Step by Step Solution
- Step 1: Write the proportion equation
306,538.05 : 423,034.47 = 185,610.99 : x - Step 2: Convert to fraction form
306,538.05/423,034.47 = 185,610.99/x - Step 3: Cross multiply
306,538.05x = 423,034.47 × 185,610.99 - Step 4: Simplify right side
306,538.05x = 78,519,846,780.83 - Step 5: Solve for x
x = 78,519,846,780.83/306,538.05 - Step 6: Final answer
x = 256,150.41
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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.