Finding the Fourth Proportional to 213,389.98, 294,453.07 and 117,890.98
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Solution
The fourth proportional to 213,389.98, 294,453.07 and 117,890.98 is: 162,675.68
Step by Step Solution
- Step 1: Write the proportion equation
213,389.98 : 294,453.07 = 117,890.98 : x - Step 2: Convert to fraction form
213,389.98/294,453.07 = 117,890.98/x - Step 3: Cross multiply
213,389.98x = 294,453.07 × 117,890.98 - Step 4: Simplify right side
213,389.98x = 34,713,360,986.31 - Step 5: Solve for x
x = 34,713,360,986.31/213,389.98 - Step 6: Final answer
x = 162,675.68
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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.