Finding the Fourth Proportional to 297,138.92, 445,701.08 and 86,778.68
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Solution
The fourth proportional to 297,138.92, 445,701.08 and 86,778.68 is: 130,165.88
Step by Step Solution
- Step 1: Write the proportion equation
297,138.92 : 445,701.08 = 86,778.68 : x - Step 2: Convert to fraction form
297,138.92/445,701.08 = 86,778.68/x - Step 3: Cross multiply
297,138.92x = 445,701.08 × 86,778.68 - Step 4: Simplify right side
297,138.92x = 38,677,349,385.42 - Step 5: Solve for x
x = 38,677,349,385.42/297,138.92 - Step 6: Final answer
x = 130,165.88
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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.