Finding the Fourth Proportional to 131,627.28, 197,440.68 and 42,880.68
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Solution
The fourth proportional to 131,627.28, 197,440.68 and 42,880.68 is: 64,320.94
Step by Step Solution
- Step 1: Write the proportion equation
131,627.28 : 197,440.68 = 42,880.68 : x - Step 2: Convert to fraction form
131,627.28/197,440.68 = 42,880.68/x - Step 3: Cross multiply
131,627.28x = 197,440.68 × 42,880.68 - Step 4: Simplify right side
131,627.28x = 8,466,390,618.06 - Step 5: Solve for x
x = 8,466,390,618.06/131,627.28 - Step 6: Final answer
x = 64,320.94
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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.