Finding the Fourth Proportional to 257,394.14, 385,861.57 and 130,963.67
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Solution
The fourth proportional to 257,394.14, 385,861.57 and 130,963.67 is: 196,328.66
Step by Step Solution
- Step 1: Write the proportion equation
257,394.14 : 385,861.57 = 130,963.67 : x - Step 2: Convert to fraction form
257,394.14/385,861.57 = 130,963.67/x - Step 3: Cross multiply
257,394.14x = 385,861.57 × 130,963.67 - Step 4: Simplify right side
257,394.14x = 50,533,846,027.10 - Step 5: Solve for x
x = 50,533,846,027.10/257,394.14 - Step 6: Final answer
x = 196,328.66
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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.