Finding the Fourth Proportional to 426,839.24, 640,258.88 and 146,358.92
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Solution
The fourth proportional to 426,839.24, 640,258.88 and 146,358.92 is: 219,538.39
Step by Step Solution
- Step 1: Write the proportion equation
426,839.24 : 640,258.88 = 146,358.92 : x - Step 2: Convert to fraction form
426,839.24/640,258.88 = 146,358.92/x - Step 3: Cross multiply
426,839.24x = 640,258.88 × 146,358.92 - Step 4: Simplify right side
426,839.24x = 93,707,598,197.21 - Step 5: Solve for x
x = 93,707,598,197.21/426,839.24 - Step 6: Final answer
x = 219,538.39
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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.