Finding the Fourth Proportional to 326,122.90, 489,184.35 and 314,313.10
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Solution
The fourth proportional to 326,122.90, 489,184.35 and 314,313.10 is: 471,469.65
Step by Step Solution
- Step 1: Write the proportion equation
326,122.90 : 489,184.35 = 314,313.10 : x - Step 2: Convert to fraction form
326,122.90/489,184.35 = 314,313.10/x - Step 3: Cross multiply
326,122.90x = 489,184.35 × 314,313.10 - Step 4: Simplify right side
326,122.90x = 153,757,049,519.99 - Step 5: Solve for x
x = 153,757,049,519.99/326,122.90 - Step 6: Final answer
x = 471,469.65
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Similar ratio
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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.