Finding the Fourth Proportional to 317,905.48, 438,902.24 and 210,567.52
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Solution
The fourth proportional to 317,905.48, 438,902.24 and 210,567.52 is: 290,710.80
Step by Step Solution
- Step 1: Write the proportion equation
317,905.48 : 438,902.24 = 210,567.52 : x - Step 2: Convert to fraction form
317,905.48/438,902.24 = 210,567.52/x - Step 3: Cross multiply
317,905.48x = 438,902.24 × 210,567.52 - Step 4: Simplify right side
317,905.48x = 92,418,556,199.24 - Step 5: Solve for x
x = 92,418,556,199.24/317,905.48 - Step 6: Final answer
x = 290,710.80
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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.