Finding the Fourth Proportional to 213,030.80, 319,776.60 and 119,718.80
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Solution
The fourth proportional to 213,030.80, 319,776.60 and 119,718.80 is: 179,707.68
Step by Step Solution
- Step 1: Write the proportion equation
213,030.80 : 319,776.60 = 119,718.80 : x - Step 2: Convert to fraction form
213,030.80/319,776.60 = 119,718.80/x - Step 3: Cross multiply
213,030.80x = 319,776.60 × 119,718.80 - Step 4: Simplify right side
213,030.80x = 38,283,270,820.08 - Step 5: Solve for x
x = 38,283,270,820.08/213,030.80 - Step 6: Final answer
x = 179,707.68
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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.