Finding the Fourth Proportional to 320,790.06, 442,684.92 and 177,547.05
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Solution
The fourth proportional to 320,790.06, 442,684.92 and 177,547.05 is: 245,011.96
Step by Step Solution
- Step 1: Write the proportion equation
320,790.06 : 442,684.92 = 177,547.05 : x - Step 2: Convert to fraction form
320,790.06/442,684.92 = 177,547.05/x - Step 3: Cross multiply
320,790.06x = 442,684.92 × 177,547.05 - Step 4: Simplify right side
320,790.06x = 78,597,401,625.49 - Step 5: Solve for x
x = 78,597,401,625.49/320,790.06 - Step 6: Final answer
x = 245,011.96
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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.