Finding the Fourth Proportional to 230,301.77, 317,808.05 and 128,321.96
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Solution
The fourth proportional to 230,301.77, 317,808.05 and 128,321.96 is: 177,079.62
Step by Step Solution
- Step 1: Write the proportion equation
230,301.77 : 317,808.05 = 128,321.96 : x - Step 2: Convert to fraction form
230,301.77/317,808.05 = 128,321.96/x - Step 3: Cross multiply
230,301.77x = 317,808.05 × 128,321.96 - Step 4: Simplify right side
230,301.77x = 40,781,749,649.13 - Step 5: Solve for x
x = 40,781,749,649.13/230,301.77 - Step 6: Final answer
x = 177,079.62
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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.