Finding the Fourth Proportional to 224,394.12, 309,664.76 and 122,421.87
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Solution
The fourth proportional to 224,394.12, 309,664.76 and 122,421.87 is: 168,942.65
Step by Step Solution
- Step 1: Write the proportion equation
224,394.12 : 309,664.76 = 122,421.87 : x - Step 2: Convert to fraction form
224,394.12/309,664.76 = 122,421.87/x - Step 3: Cross multiply
224,394.12x = 309,664.76 × 122,421.87 - Step 4: Simplify right side
224,394.12x = 37,909,738,380.19 - Step 5: Solve for x
x = 37,909,738,380.19/224,394.12 - Step 6: Final answer
x = 168,942.65
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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.