Finding the Fourth Proportional to 221,652.64, 305,804.80 and 126,135.44
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Solution
The fourth proportional to 221,652.64, 305,804.80 and 126,135.44 is: 174,023.75
Step by Step Solution
- Step 1: Write the proportion equation
221,652.64 : 305,804.80 = 126,135.44 : x - Step 2: Convert to fraction form
221,652.64/305,804.80 = 126,135.44/x - Step 3: Cross multiply
221,652.64x = 305,804.80 × 126,135.44 - Step 4: Simplify right side
221,652.64x = 38,572,823,002.11 - Step 5: Solve for x
x = 38,572,823,002.11/221,652.64 - Step 6: Final answer
x = 174,023.75
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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.