Finding the Fourth Proportional to 228,444.60, 342,629.10 and 76,639.80
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Solution
The fourth proportional to 228,444.60, 342,629.10 and 76,639.80 is: 114,947.02
Step by Step Solution
- Step 1: Write the proportion equation
228,444.60 : 342,629.10 = 76,639.80 : x - Step 2: Convert to fraction form
228,444.60/342,629.10 = 76,639.80/x - Step 3: Cross multiply
228,444.60x = 342,629.10 × 76,639.80 - Step 4: Simplify right side
228,444.60x = 26,259,025,698.18 - Step 5: Solve for x
x = 26,259,025,698.18/228,444.60 - Step 6: Final answer
x = 114,947.02
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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.