Finding the Fourth Proportional to 343,989.79, 474,930.74 and 223,474.55
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Solution
The fourth proportional to 343,989.79, 474,930.74 and 223,474.55 is: 308,540.94
Step by Step Solution
- Step 1: Write the proportion equation
343,989.79 : 474,930.74 = 223,474.55 : x - Step 2: Convert to fraction form
343,989.79/474,930.74 = 223,474.55/x - Step 3: Cross multiply
343,989.79x = 474,930.74 × 223,474.55 - Step 4: Simplify right side
343,989.79x = 106,134,931,586.70 - Step 5: Solve for x
x = 106,134,931,586.70/343,989.79 - Step 6: Final answer
x = 308,540.94
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.