Finding the Fourth Proportional to 213,681.36, 320,346.36 and 124,715.28
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Solution
The fourth proportional to 213,681.36, 320,346.36 and 124,715.28 is: 186,970.38
Step by Step Solution
- Step 1: Write the proportion equation
213,681.36 : 320,346.36 = 124,715.28 : x - Step 2: Convert to fraction form
213,681.36/320,346.36 = 124,715.28/x - Step 3: Cross multiply
213,681.36x = 320,346.36 × 124,715.28 - Step 4: Simplify right side
213,681.36x = 39,952,085,984.38 - Step 5: Solve for x
x = 39,952,085,984.38/213,681.36 - Step 6: Final answer
x = 186,970.38
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.