Finding the Fourth Proportional to 278,097.17, 383,793.75 and 157,239.63
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Solution
The fourth proportional to 278,097.17, 383,793.75 and 157,239.63 is: 217,001.81
Step by Step Solution
- Step 1: Write the proportion equation
278,097.17 : 383,793.75 = 157,239.63 : x - Step 2: Convert to fraction form
278,097.17/383,793.75 = 157,239.63/x - Step 3: Cross multiply
278,097.17x = 383,793.75 × 157,239.63 - Step 4: Simplify right side
278,097.17x = 60,347,587,246.31 - Step 5: Solve for x
x = 60,347,587,246.31/278,097.17 - Step 6: Final answer
x = 217,001.81
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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.