Finding the Fourth Proportional to 186,822.05, 257,820.11 and 106,261.16
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Solution
The fourth proportional to 186,822.05, 257,820.11 and 106,261.16 is: 146,643.63
Step by Step Solution
- Step 1: Write the proportion equation
186,822.05 : 257,820.11 = 106,261.16 : x - Step 2: Convert to fraction form
186,822.05/257,820.11 = 106,261.16/x - Step 3: Cross multiply
186,822.05x = 257,820.11 × 106,261.16 - Step 4: Simplify right side
186,822.05x = 27,396,264,870.13 - Step 5: Solve for x
x = 27,396,264,870.13/186,822.05 - Step 6: Final answer
x = 146,643.63
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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.