Finding the Fourth Proportional to 320,965.16, 442,926.49 and 177,722.12
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Solution
The fourth proportional to 320,965.16, 442,926.49 and 177,722.12 is: 245,253.52
Step by Step Solution
- Step 1: Write the proportion equation
320,965.16 : 442,926.49 = 177,722.12 : x - Step 2: Convert to fraction form
320,965.16/442,926.49 = 177,722.12/x - Step 3: Cross multiply
320,965.16x = 442,926.49 × 177,722.12 - Step 4: Simplify right side
320,965.16x = 78,717,834,806.96 - Step 5: Solve for x
x = 78,717,834,806.96/320,965.16 - Step 6: Final answer
x = 245,253.52
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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.