Finding the Fourth Proportional to 521,615.20, 782,466.08 and 166,679.68
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Solution
The fourth proportional to 521,615.20, 782,466.08 and 166,679.68 is: 250,033.35
Step by Step Solution
- Step 1: Write the proportion equation
521,615.20 : 782,466.08 = 166,679.68 : x - Step 2: Convert to fraction form
521,615.20/782,466.08 = 166,679.68/x - Step 3: Cross multiply
521,615.20x = 782,466.08 × 166,679.68 - Step 4: Simplify right side
521,615.20x = 130,421,195,825.25 - Step 5: Solve for x
x = 130,421,195,825.25/521,615.20 - Step 6: Final answer
x = 250,033.35
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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.