Finding the Fourth Proportional to 440,312.90, 660,469.35 and 159,793.70
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Solution
The fourth proportional to 440,312.90, 660,469.35 and 159,793.70 is: 239,690.55
Step by Step Solution
- Step 1: Write the proportion equation
440,312.90 : 660,469.35 = 159,793.70 : x - Step 2: Convert to fraction form
440,312.90/660,469.35 = 159,793.70/x - Step 3: Cross multiply
440,312.90x = 660,469.35 × 159,793.70 - Step 4: Simplify right side
440,312.90x = 105,538,841,173.10 - Step 5: Solve for x
x = 105,538,841,173.10/440,312.90 - Step 6: Final answer
x = 239,690.55
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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.