Finding the Fourth Proportional to 274,156.74, 378,351.05 and 153,297.65
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Solution
The fourth proportional to 274,156.74, 378,351.05 and 153,297.65 is: 211,558.99
Step by Step Solution
- Step 1: Write the proportion equation
274,156.74 : 378,351.05 = 153,297.65 : x - Step 2: Convert to fraction form
274,156.74/378,351.05 = 153,297.65/x - Step 3: Cross multiply
274,156.74x = 378,351.05 × 153,297.65 - Step 4: Simplify right side
274,156.74x = 58,000,324,181.79 - Step 5: Solve for x
x = 58,000,324,181.79/274,156.74 - Step 6: Final answer
x = 211,558.99
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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.