Finding the Fourth Proportional to 339,240.96, 509,052.60 and 312,472.08
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Solution
The fourth proportional to 339,240.96, 509,052.60 and 312,472.08 is: 468,884.20
Step by Step Solution
- Step 1: Write the proportion equation
339,240.96 : 509,052.60 = 312,472.08 : x - Step 2: Convert to fraction form
339,240.96/509,052.60 = 312,472.08/x - Step 3: Cross multiply
339,240.96x = 509,052.60 × 312,472.08 - Step 4: Simplify right side
339,240.96x = 159,064,724,751.41 - Step 5: Solve for x
x = 159,064,724,751.41/339,240.96 - Step 6: Final answer
x = 468,884.20
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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.