Finding the Fourth Proportional to 316,810.39, 436,848.09 and 201,907.18
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Solution
The fourth proportional to 316,810.39, 436,848.09 and 201,907.18 is: 278,408.69
Step by Step Solution
- Step 1: Write the proportion equation
316,810.39 : 436,848.09 = 201,907.18 : x - Step 2: Convert to fraction form
316,810.39/436,848.09 = 201,907.18/x - Step 3: Cross multiply
316,810.39x = 436,848.09 × 201,907.18 - Step 4: Simplify right side
316,810.39x = 88,202,765,940.29 - Step 5: Solve for x
x = 88,202,765,940.29/316,810.39 - Step 6: Final answer
x = 278,408.69
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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.