Finding the Fourth Proportional to 278,458.48, 384,268.56 and 157,622.68
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Solution
The fourth proportional to 278,458.48, 384,268.56 and 157,622.68 is: 217,516.95
Step by Step Solution
- Step 1: Write the proportion equation
278,458.48 : 384,268.56 = 157,622.68 : x - Step 2: Convert to fraction form
278,458.48/384,268.56 = 157,622.68/x - Step 3: Cross multiply
278,458.48x = 384,268.56 × 157,622.68 - Step 4: Simplify right side
278,458.48x = 60,569,440,266.94 - Step 5: Solve for x
x = 60,569,440,266.94/278,458.48 - Step 6: Final answer
x = 217,516.95
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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.