Finding the Fourth Proportional to 317,882.68, 438,526.52 and 231,656.80
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Solution
The fourth proportional to 317,882.68, 438,526.52 and 231,656.80 is: 319,575.92
Step by Step Solution
- Step 1: Write the proportion equation
317,882.68 : 438,526.52 = 231,656.80 : x - Step 2: Convert to fraction form
317,882.68/438,526.52 = 231,656.80/x - Step 3: Cross multiply
317,882.68x = 438,526.52 × 231,656.80 - Step 4: Simplify right side
317,882.68x = 101,587,650,338.34 - Step 5: Solve for x
x = 101,587,650,338.34/317,882.68 - Step 6: Final answer
x = 319,575.92
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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.