Finding the Fourth Proportional to 309,798.17, 464,660.35 and 85,181.42
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Solution
The fourth proportional to 309,798.17, 464,660.35 and 85,181.42 is: 127,761.99
Step by Step Solution
- Step 1: Write the proportion equation
309,798.17 : 464,660.35 = 85,181.42 : x - Step 2: Convert to fraction form
309,798.17/464,660.35 = 85,181.42/x - Step 3: Cross multiply
309,798.17x = 464,660.35 × 85,181.42 - Step 4: Simplify right side
309,798.17x = 39,580,429,379.39 - Step 5: Solve for x
x = 39,580,429,379.39/309,798.17 - Step 6: Final answer
x = 127,761.99
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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.