Finding the Fourth Proportional to 274,364.91, 378,638.28 and 153,498.99
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Solution
The fourth proportional to 274,364.91, 378,638.28 and 153,498.99 is: 211,836.83
Step by Step Solution
- Step 1: Write the proportion equation
274,364.91 : 378,638.28 = 153,498.99 : x - Step 2: Convert to fraction form
274,364.91/378,638.28 = 153,498.99/x - Step 3: Cross multiply
274,364.91x = 378,638.28 × 153,498.99 - Step 4: Simplify right side
274,364.91x = 58,120,593,555.34 - Step 5: Solve for x
x = 58,120,593,555.34/274,364.91 - Step 6: Final answer
x = 211,836.83
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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.