Finding the Fourth Proportional to 197,277.36, 272,228.76 and 112,378.80
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Solution
The fourth proportional to 197,277.36, 272,228.76 and 112,378.80 is: 155,074.77
Step by Step Solution
- Step 1: Write the proportion equation
197,277.36 : 272,228.76 = 112,378.80 : x - Step 2: Convert to fraction form
197,277.36/272,228.76 = 112,378.80/x - Step 3: Cross multiply
197,277.36x = 272,228.76 × 112,378.80 - Step 4: Simplify right side
197,277.36x = 30,592,741,374.29 - Step 5: Solve for x
x = 30,592,741,374.29/197,277.36 - Step 6: Final answer
x = 155,074.77
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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.