Finding the Fourth Proportional to 186,317.23, 257,116.16 and 101,434.09
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Solution
The fourth proportional to 186,317.23, 257,116.16 and 101,434.09 is: 139,978.16
Step by Step Solution
- Step 1: Write the proportion equation
186,317.23 : 257,116.16 = 101,434.09 : x - Step 2: Convert to fraction form
186,317.23/257,116.16 = 101,434.09/x - Step 3: Cross multiply
186,317.23x = 257,116.16 × 101,434.09 - Step 4: Simplify right side
186,317.23x = 26,080,343,206.72 - Step 5: Solve for x
x = 26,080,343,206.72/186,317.23 - Step 6: Final answer
x = 139,978.16
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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.