Finding the Fourth Proportional to 185,636.80, 278,486.79 and 73,258.21
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Solution
The fourth proportional to 185,636.80, 278,486.79 and 73,258.21 is: 109,899.78
Step by Step Solution
- Step 1: Write the proportion equation
185,636.80 : 278,486.79 = 73,258.21 : x - Step 2: Convert to fraction form
185,636.80/278,486.79 = 73,258.21/x - Step 3: Cross multiply
185,636.80x = 278,486.79 × 73,258.21 - Step 4: Simplify right side
185,636.80x = 20,401,443,744.05 - Step 5: Solve for x
x = 20,401,443,744.05/185,636.80 - Step 6: Final answer
x = 109,899.78
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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.