Finding the Fourth Proportional to 317,122.11, 474,750.05 and 211,679.55
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Solution
The fourth proportional to 317,122.11, 474,750.05 and 211,679.55 is: 316,896.47
Step by Step Solution
- Step 1: Write the proportion equation
317,122.11 : 474,750.05 = 211,679.55 : x - Step 2: Convert to fraction form
317,122.11/474,750.05 = 211,679.55/x - Step 3: Cross multiply
317,122.11x = 474,750.05 × 211,679.55 - Step 4: Simplify right side
317,122.11x = 100,494,875,888.08 - Step 5: Solve for x
x = 100,494,875,888.08/317,122.11 - Step 6: Final answer
x = 316,896.47
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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.