Finding the Fourth Proportional to 354,979.21, 531,221.99 and 305,655.07
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Solution
The fourth proportional to 354,979.21, 531,221.99 and 305,655.07 is: 457,409.03
Step by Step Solution
- Step 1: Write the proportion equation
354,979.21 : 531,221.99 = 305,655.07 : x - Step 2: Convert to fraction form
354,979.21/531,221.99 = 305,655.07/x - Step 3: Cross multiply
354,979.21x = 531,221.99 × 305,655.07 - Step 4: Simplify right side
354,979.21x = 162,370,693,210.93 - Step 5: Solve for x
x = 162,370,693,210.93/354,979.21 - Step 6: Final answer
x = 457,409.03
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.