Finding the Fourth Proportional to 210,507.53, 290,497.01 and 115,012.18
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Solution
The fourth proportional to 210,507.53, 290,497.01 and 115,012.18 is: 158,714.95
Step by Step Solution
- Step 1: Write the proportion equation
210,507.53 : 290,497.01 = 115,012.18 : x - Step 2: Convert to fraction form
210,507.53/290,497.01 = 115,012.18/x - Step 3: Cross multiply
210,507.53x = 290,497.01 × 115,012.18 - Step 4: Simplify right side
210,507.53x = 33,410,693,102.28 - Step 5: Solve for x
x = 33,410,693,102.28/210,507.53 - Step 6: Final answer
x = 158,714.95
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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.