Finding the Fourth Proportional to 278,802.26, 384,734.58 and 157,941.08
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Solution
The fourth proportional to 278,802.26, 384,734.58 and 157,941.08 is: 217,951.59
Step by Step Solution
- Step 1: Write the proportion equation
278,802.26 : 384,734.58 = 157,941.08 : x - Step 2: Convert to fraction form
278,802.26/384,734.58 = 157,941.08/x - Step 3: Cross multiply
278,802.26x = 384,734.58 × 157,941.08 - Step 4: Simplify right side
278,802.26x = 60,765,395,078.55 - Step 5: Solve for x
x = 60,765,395,078.55/278,802.26 - Step 6: Final answer
x = 217,951.59
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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.