Finding the Fourth Proportional to 230,823.22, 318,542.10 and 128,848.26
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Solution
The fourth proportional to 230,823.22, 318,542.10 and 128,848.26 is: 177,813.98
Step by Step Solution
- Step 1: Write the proportion equation
230,823.22 : 318,542.10 = 128,848.26 : x - Step 2: Convert to fraction form
230,823.22/318,542.10 = 128,848.26/x - Step 3: Cross multiply
230,823.22x = 318,542.10 × 128,848.26 - Step 4: Simplify right side
230,823.22x = 41,043,595,321.75 - Step 5: Solve for x
x = 41,043,595,321.75/230,823.22 - Step 6: Final answer
x = 177,813.98
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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.