Finding the Fourth Proportional to 317,246.85, 437,649.75 and 189,897.84
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Solution
The fourth proportional to 317,246.85, 437,649.75 and 189,897.84 is: 261,968.69
Step by Step Solution
- Step 1: Write the proportion equation
317,246.85 : 437,649.75 = 189,897.84 : x - Step 2: Convert to fraction form
317,246.85/437,649.75 = 189,897.84/x - Step 3: Cross multiply
317,246.85x = 437,649.75 × 189,897.84 - Step 4: Simplify right side
317,246.85x = 83,108,742,201.54 - Step 5: Solve for x
x = 83,108,742,201.54/317,246.85 - Step 6: Final answer
x = 261,968.69
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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.