Finding the Fourth Proportional to 443,688.76, 612,290.97 and 239,740.08
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Solution
The fourth proportional to 443,688.76, 612,290.97 and 239,740.08 is: 330,841.57
Step by Step Solution
- Step 1: Write the proportion equation
443,688.76 : 612,290.97 = 239,740.08 : x - Step 2: Convert to fraction form
443,688.76/612,290.97 = 239,740.08/x - Step 3: Cross multiply
443,688.76x = 612,290.97 × 239,740.08 - Step 4: Simplify right side
443,688.76x = 146,790,686,231.32 - Step 5: Solve for x
x = 146,790,686,231.32/443,688.76 - Step 6: Final answer
x = 330,841.57
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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.