Finding the Fourth Proportional to 210,886.19, 291,026.59 and 115,394.48
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Solution
The fourth proportional to 210,886.19, 291,026.59 and 115,394.48 is: 159,246.38
Step by Step Solution
- Step 1: Write the proportion equation
210,886.19 : 291,026.59 = 115,394.48 : x - Step 2: Convert to fraction form
210,886.19/291,026.59 = 115,394.48/x - Step 3: Cross multiply
210,886.19x = 291,026.59 × 115,394.48 - Step 4: Simplify right side
210,886.19x = 33,582,861,442.25 - Step 5: Solve for x
x = 33,582,861,442.25/210,886.19 - Step 6: Final answer
x = 159,246.38
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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.