Finding the Fourth Proportional to 319,585.90, 479,378.85 and 201,390.70
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Solution
The fourth proportional to 319,585.90, 479,378.85 and 201,390.70 is: 302,086.05
Step by Step Solution
- Step 1: Write the proportion equation
319,585.90 : 479,378.85 = 201,390.70 : x - Step 2: Convert to fraction form
319,585.90/479,378.85 = 201,390.70/x - Step 3: Cross multiply
319,585.90x = 479,378.85 × 201,390.70 - Step 4: Simplify right side
319,585.90x = 96,542,442,166.70 - Step 5: Solve for x
x = 96,542,442,166.70/319,585.90 - Step 6: Final answer
x = 302,086.05
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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.