Finding the Fourth Proportional to 312,277.69, 430,942.86 and 169,037.70
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Solution
The fourth proportional to 312,277.69, 430,942.86 and 169,037.70 is: 233,271.83
Step by Step Solution
- Step 1: Write the proportion equation
312,277.69 : 430,942.86 = 169,037.70 : x - Step 2: Convert to fraction form
312,277.69/430,942.86 = 169,037.70/x - Step 3: Cross multiply
312,277.69x = 430,942.86 × 169,037.70 - Step 4: Simplify right side
312,277.69x = 72,845,588,269.79 - Step 5: Solve for x
x = 72,845,588,269.79/312,277.69 - Step 6: Final answer
x = 233,271.83
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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.