Finding the Fourth Proportional to 278,101.10, 383,768.86 and 157,244.91
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Solution
The fourth proportional to 278,101.10, 383,768.86 and 157,244.91 is: 216,991.95
Step by Step Solution
- Step 1: Write the proportion equation
278,101.10 : 383,768.86 = 157,244.91 : x - Step 2: Convert to fraction form
278,101.10/383,768.86 = 157,244.91/x - Step 3: Cross multiply
278,101.10x = 383,768.86 × 157,244.91 - Step 4: Simplify right side
278,101.10x = 60,345,700,472.79 - Step 5: Solve for x
x = 60,345,700,472.79/278,101.10 - Step 6: Final answer
x = 216,991.95
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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.