Finding the Fourth Proportional to 278,044.43, 383,717.87 and 157,196.99
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Solution
The fourth proportional to 278,044.43, 383,717.87 and 157,196.99 is: 216,941.20
Step by Step Solution
- Step 1: Write the proportion equation
278,044.43 : 383,717.87 = 157,196.99 : x - Step 2: Convert to fraction form
278,044.43/383,717.87 = 157,196.99/x - Step 3: Cross multiply
278,044.43x = 383,717.87 × 157,196.99 - Step 4: Simplify right side
278,044.43x = 60,319,291,468.64 - Step 5: Solve for x
x = 60,319,291,468.64/278,044.43 - Step 6: Final answer
x = 216,941.20
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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.