Finding the Fourth Proportional to 472,427.76, 708,496.26 and 135,378.12
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Solution
The fourth proportional to 472,427.76, 708,496.26 and 135,378.12 is: 203,025.52
Step by Step Solution
- Step 1: Write the proportion equation
472,427.76 : 708,496.26 = 135,378.12 : x - Step 2: Convert to fraction form
472,427.76/708,496.26 = 135,378.12/x - Step 3: Cross multiply
472,427.76x = 708,496.26 × 135,378.12 - Step 4: Simplify right side
472,427.76x = 95,914,891,705.83 - Step 5: Solve for x
x = 95,914,891,705.83/472,427.76 - Step 6: Final answer
x = 203,025.52
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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.