Finding the Fourth Proportional to 178,400.12, 245,954.00 and 141,728.01
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Solution
The fourth proportional to 178,400.12, 245,954.00 and 141,728.01 is: 195,395.45
Step by Step Solution
- Step 1: Write the proportion equation
178,400.12 : 245,954.00 = 141,728.01 : x - Step 2: Convert to fraction form
178,400.12/245,954.00 = 141,728.01/x - Step 3: Cross multiply
178,400.12x = 245,954.00 × 141,728.01 - Step 4: Simplify right side
178,400.12x = 34,858,570,617.22 - Step 5: Solve for x
x = 34,858,570,617.22/178,400.12 - Step 6: Final answer
x = 195,395.45
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1.5x scale
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.