Finding the Fourth Proportional to 278,135.99, 383,835.22 and 157,295.35
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Solution
The fourth proportional to 278,135.99, 383,835.22 and 157,295.35 is: 217,071.85
Step by Step Solution
- Step 1: Write the proportion equation
278,135.99 : 383,835.22 = 157,295.35 : x - Step 2: Convert to fraction form
278,135.99/383,835.22 = 157,295.35/x - Step 3: Cross multiply
278,135.99x = 383,835.22 × 157,295.35 - Step 4: Simplify right side
278,135.99x = 60,375,495,358.78 - Step 5: Solve for x
x = 60,375,495,358.78/278,135.99 - Step 6: Final answer
x = 217,071.85
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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.