Finding the Fourth Proportional to 210,887.13, 291,028.95 and 115,393.80
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Solution
The fourth proportional to 210,887.13, 291,028.95 and 115,393.80 is: 159,246.02
Step by Step Solution
- Step 1: Write the proportion equation
210,887.13 : 291,028.95 = 115,393.80 : x - Step 2: Convert to fraction form
210,887.13/291,028.95 = 115,393.80/x - Step 3: Cross multiply
210,887.13x = 291,028.95 × 115,393.80 - Step 4: Simplify right side
210,887.13x = 33,582,936,450.51 - Step 5: Solve for x
x = 33,582,936,450.51/210,887.13 - Step 6: Final answer
x = 159,246.02
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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.