Finding the Fourth Proportional to 278,460.43, 384,275.76 and 151,135.99
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Solution
The fourth proportional to 278,460.43, 384,275.76 and 151,135.99 is: 208,567.87
Step by Step Solution
- Step 1: Write the proportion equation
278,460.43 : 384,275.76 = 151,135.99 : x - Step 2: Convert to fraction form
278,460.43/384,275.76 = 151,135.99/x - Step 3: Cross multiply
278,460.43x = 384,275.76 × 151,135.99 - Step 4: Simplify right side
278,460.43x = 58,077,897,420.60 - Step 5: Solve for x
x = 58,077,897,420.60/278,460.43 - Step 6: Final answer
x = 208,567.87
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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.