Finding the Fourth Proportional to 188,643.17, 260,322.09 and 103,760.21
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Solution
The fourth proportional to 188,643.17, 260,322.09 and 103,760.21 is: 143,186.07
Step by Step Solution
- Step 1: Write the proportion equation
188,643.17 : 260,322.09 = 103,760.21 : x - Step 2: Convert to fraction form
188,643.17/260,322.09 = 103,760.21/x - Step 3: Cross multiply
188,643.17x = 260,322.09 × 103,760.21 - Step 4: Simplify right side
188,643.17x = 27,011,074,726.04 - Step 5: Solve for x
x = 27,011,074,726.04/188,643.17 - Step 6: Final answer
x = 143,186.07
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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.