Finding the Fourth Proportional to 317,140.11, 474,777.05 and 211,697.55
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Solution
The fourth proportional to 317,140.11, 474,777.05 and 211,697.55 is: 316,923.45
Step by Step Solution
- Step 1: Write the proportion equation
317,140.11 : 474,777.05 = 211,697.55 : x - Step 2: Convert to fraction form
317,140.11/474,777.05 = 211,697.55/x - Step 3: Cross multiply
317,140.11x = 474,777.05 × 211,697.55 - Step 4: Simplify right side
317,140.11x = 100,509,137,222.74 - Step 5: Solve for x
x = 100,509,137,222.74/317,140.11 - Step 6: Final answer
x = 316,923.45
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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.