Finding the Fourth Proportional to 228,278.70, 342,418.05 and 103,619.70
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Solution
The fourth proportional to 228,278.70, 342,418.05 and 103,619.70 is: 155,429.55
Step by Step Solution
- Step 1: Write the proportion equation
228,278.70 : 342,418.05 = 103,619.70 : x - Step 2: Convert to fraction form
228,278.70/342,418.05 = 103,619.70/x - Step 3: Cross multiply
228,278.70x = 342,418.05 × 103,619.70 - Step 4: Simplify right side
228,278.70x = 35,481,255,615.59 - Step 5: Solve for x
x = 35,481,255,615.59/228,278.70 - Step 6: Final answer
x = 155,429.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.