Finding the Fourth Proportional to 257,236.76, 355,109.94 and 171,338.68
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Solution
The fourth proportional to 257,236.76, 355,109.94 and 171,338.68 is: 236,529.45
Step by Step Solution
- Step 1: Write the proportion equation
257,236.76 : 355,109.94 = 171,338.68 : x - Step 2: Convert to fraction form
257,236.76/355,109.94 = 171,338.68/x - Step 3: Cross multiply
257,236.76x = 355,109.94 × 171,338.68 - Step 4: Simplify right side
257,236.76x = 60,844,068,374.48 - Step 5: Solve for x
x = 60,844,068,374.48/257,236.76 - Step 6: Final answer
x = 236,529.45
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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.