Finding the Fourth Proportional to 213,386.74, 294,476.79 and 117,895.63
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Solution
The fourth proportional to 213,386.74, 294,476.79 and 117,895.63 is: 162,697.68
Step by Step Solution
- Step 1: Write the proportion equation
213,386.74 : 294,476.79 = 117,895.63 : x - Step 2: Convert to fraction form
213,386.74/294,476.79 = 117,895.63/x - Step 3: Cross multiply
213,386.74x = 294,476.79 × 117,895.63 - Step 4: Simplify right side
213,386.74x = 34,717,526,677.43 - Step 5: Solve for x
x = 34,717,526,677.43/213,386.74 - Step 6: Final answer
x = 162,697.68
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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.