Finding the Fourth Proportional to 238,698.19, 329,396.94 and 131,268.23
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Solution
The fourth proportional to 238,698.19, 329,396.94 and 131,268.23 is: 181,146.55
Step by Step Solution
- Step 1: Write the proportion equation
238,698.19 : 329,396.94 = 131,268.23 : x - Step 2: Convert to fraction form
238,698.19/329,396.94 = 131,268.23/x - Step 3: Cross multiply
238,698.19x = 329,396.94 × 131,268.23 - Step 4: Simplify right side
238,698.19x = 43,239,353,281.22 - Step 5: Solve for x
x = 43,239,353,281.22/238,698.19 - Step 6: Final answer
x = 181,146.55
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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.