Finding the Fourth Proportional to 312,276.38, 430,941.60 and 169,037.60
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Solution
The fourth proportional to 312,276.38, 430,941.60 and 169,037.60 is: 233,271.99
Step by Step Solution
- Step 1: Write the proportion equation
312,276.38 : 430,941.60 = 169,037.60 : x - Step 2: Convert to fraction form
312,276.38/430,941.60 = 169,037.60/x - Step 3: Cross multiply
312,276.38x = 430,941.60 × 169,037.60 - Step 4: Simplify right side
312,276.38x = 72,845,331,649.45 - Step 5: Solve for x
x = 72,845,331,649.45/312,276.38 - Step 6: Final answer
x = 233,271.99
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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.