Finding the Fourth Proportional to 931,154.70, 1,396,758.38 and 257,236.12
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Solution
The fourth proportional to 931,154.70, 1,396,758.38 and 257,236.12 is: 385,861.45
Step by Step Solution
- Step 1: Write the proportion equation
931,154.70 : 1,396,758.38 = 257,236.12 : x - Step 2: Convert to fraction form
931,154.70/1,396,758.38 = 257,236.12/x - Step 3: Cross multiply
931,154.70x = 1,396,758.38 × 257,236.12 - Step 4: Simplify right side
931,154.70x = 359,296,708,155.41 - Step 5: Solve for x
x = 359,296,708,155.41/931,154.70 - Step 6: Final answer
x = 385,861.45
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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.