Finding the Fourth Proportional to 312,283.92, 430,951.86 and 169,045.14
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Solution
The fourth proportional to 312,283.92, 430,951.86 and 169,045.14 is: 233,282.32
Step by Step Solution
- Step 1: Write the proportion equation
312,283.92 : 430,951.86 = 169,045.14 : x - Step 2: Convert to fraction form
312,283.92/430,951.86 = 169,045.14/x - Step 3: Cross multiply
312,283.92x = 430,951.86 × 169,045.14 - Step 4: Simplify right side
312,283.92x = 72,850,317,506.96 - Step 5: Solve for x
x = 72,850,317,506.96/312,283.92 - Step 6: Final answer
x = 233,282.32
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1.5x scale
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.