Finding the Fourth Proportional to 210,954.58, 291,106.10 and 115,442.82
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Solution
The fourth proportional to 210,954.58, 291,106.10 and 115,442.82 is: 159,304.95
Step by Step Solution
- Step 1: Write the proportion equation
210,954.58 : 291,106.10 = 115,442.82 : x - Step 2: Convert to fraction form
210,954.58/291,106.10 = 115,442.82/x - Step 3: Cross multiply
210,954.58x = 291,106.10 × 115,442.82 - Step 4: Simplify right side
210,954.58x = 33,606,109,391.81 - Step 5: Solve for x
x = 33,606,109,391.81/210,954.58 - Step 6: Final answer
x = 159,304.95
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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.