Finding the Fourth Proportional to 312,277.57, 430,942.69 and 169,037.57
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Solution
The fourth proportional to 312,277.57, 430,942.69 and 169,037.57 is: 233,271.65
Step by Step Solution
- Step 1: Write the proportion equation
312,277.57 : 430,942.69 = 169,037.57 : x - Step 2: Convert to fraction form
312,277.57/430,942.69 = 169,037.57/x - Step 3: Cross multiply
312,277.57x = 430,942.69 × 169,037.57 - Step 4: Simplify right side
312,277.57x = 72,845,505,126.86 - Step 5: Solve for x
x = 72,845,505,126.86/312,277.57 - Step 6: Final answer
x = 233,271.65
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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.