Finding the Fourth Proportional to 313,918.11, 433,204.80 and 170,678.19
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Solution
The fourth proportional to 313,918.11, 433,204.80 and 170,678.19 is: 235,534.71
Step by Step Solution
- Step 1: Write the proportion equation
313,918.11 : 433,204.80 = 170,678.19 : x - Step 2: Convert to fraction form
313,918.11/433,204.80 = 170,678.19/x - Step 3: Cross multiply
313,918.11x = 433,204.80 × 170,678.19 - Step 4: Simplify right side
313,918.11x = 73,938,611,163.31 - Step 5: Solve for x
x = 73,938,611,163.31/313,918.11 - Step 6: Final answer
x = 235,534.71
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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.