Finding the Fourth Proportional to 415,987.68, 624,059.28 and 166,689.12
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Solution
The fourth proportional to 415,987.68, 624,059.28 and 166,689.12 is: 250,064.84
Step by Step Solution
- Step 1: Write the proportion equation
415,987.68 : 624,059.28 = 166,689.12 : x - Step 2: Convert to fraction form
415,987.68/624,059.28 = 166,689.12/x - Step 3: Cross multiply
415,987.68x = 624,059.28 × 166,689.12 - Step 4: Simplify right side
415,987.68x = 104,023,892,211.03 - Step 5: Solve for x
x = 104,023,892,211.03/415,987.68 - Step 6: Final answer
x = 250,064.84
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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.