Finding the Fourth Proportional to 447,420.05, 617,427.23 and 243,466.23
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Solution
The fourth proportional to 447,420.05, 617,427.23 and 243,466.23 is: 335,976.63
Step by Step Solution
- Step 1: Write the proportion equation
447,420.05 : 617,427.23 = 243,466.23 : x - Step 2: Convert to fraction form
447,420.05/617,427.23 = 243,466.23/x - Step 3: Cross multiply
447,420.05x = 617,427.23 × 243,466.23 - Step 4: Simplify right side
447,420.05x = 150,322,678,770.11 - Step 5: Solve for x
x = 150,322,678,770.11/447,420.05 - Step 6: Final answer
x = 335,976.63
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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.