Finding the Fourth Proportional to 262,923.80, 394,385.70 and 122,955.80
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Solution
The fourth proportional to 262,923.80, 394,385.70 and 122,955.80 is: 184,433.70
Step by Step Solution
- Step 1: Write the proportion equation
262,923.80 : 394,385.70 = 122,955.80 : x - Step 2: Convert to fraction form
262,923.80/394,385.70 = 122,955.80/x - Step 3: Cross multiply
262,923.80x = 394,385.70 × 122,955.80 - Step 4: Simplify right side
262,923.80x = 48,492,009,252.06 - Step 5: Solve for x
x = 48,492,009,252.06/262,923.80 - Step 6: Final answer
x = 184,433.70
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1.5x scale
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.