Finding the Fourth Proportional to 197,661.20, 296,491.80 and 97,869.20
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Solution
The fourth proportional to 197,661.20, 296,491.80 and 97,869.20 is: 146,803.80
Step by Step Solution
- Step 1: Write the proportion equation
197,661.20 : 296,491.80 = 97,869.20 : x - Step 2: Convert to fraction form
197,661.20/296,491.80 = 97,869.20/x - Step 3: Cross multiply
197,661.20x = 296,491.80 × 97,869.20 - Step 4: Simplify right side
197,661.20x = 29,017,415,272.56 - Step 5: Solve for x
x = 29,017,415,272.56/197,661.20 - Step 6: Final answer
x = 146,803.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.