Finding the Fourth Proportional to 197,453.12, 272,491.56 and 108,029.12
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Solution
The fourth proportional to 197,453.12, 272,491.56 and 108,029.12 is: 149,083.61
Step by Step Solution
- Step 1: Write the proportion equation
197,453.12 : 272,491.56 = 108,029.12 : x - Step 2: Convert to fraction form
197,453.12/272,491.56 = 108,029.12/x - Step 3: Cross multiply
197,453.12x = 272,491.56 × 108,029.12 - Step 4: Simplify right side
197,453.12x = 29,437,023,434.23 - Step 5: Solve for x
x = 29,437,023,434.23/197,453.12 - Step 6: Final answer
x = 149,083.61
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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.