Finding the Fourth Proportional to 257,409.92, 354,937.92 and 161,799.68
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Solution
The fourth proportional to 257,409.92, 354,937.92 and 161,799.68 is: 223,102.68
Step by Step Solution
- Step 1: Write the proportion equation
257,409.92 : 354,937.92 = 161,799.68 : x - Step 2: Convert to fraction form
257,409.92/354,937.92 = 161,799.68/x - Step 3: Cross multiply
257,409.92x = 354,937.92 × 161,799.68 - Step 4: Simplify right side
257,409.92x = 57,428,841,875.87 - Step 5: Solve for x
x = 57,428,841,875.87/257,409.92 - Step 6: Final answer
x = 223,102.68
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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.