Finding the Fourth Proportional to 340,883.19, 470,421.14 and 189,989.91
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Solution
The fourth proportional to 340,883.19, 470,421.14 and 189,989.91 is: 262,187.38
Step by Step Solution
- Step 1: Write the proportion equation
340,883.19 : 470,421.14 = 189,989.91 : x - Step 2: Convert to fraction form
340,883.19/470,421.14 = 189,989.91/x - Step 3: Cross multiply
340,883.19x = 470,421.14 × 189,989.91 - Step 4: Simplify right side
340,883.19x = 89,375,269,100.75 - Step 5: Solve for x
x = 89,375,269,100.75/340,883.19 - Step 6: Final answer
x = 262,187.38
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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.