Finding the Fourth Proportional to 317,881.68, 438,525.14 and 231,655.80
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Solution
The fourth proportional to 317,881.68, 438,525.14 and 231,655.80 is: 319,574.54
Step by Step Solution
- Step 1: Write the proportion equation
317,881.68 : 438,525.14 = 231,655.80 : x - Step 2: Convert to fraction form
317,881.68/438,525.14 = 231,655.80/x - Step 3: Cross multiply
317,881.68x = 438,525.14 × 231,655.80 - Step 4: Simplify right side
317,881.68x = 101,586,892,126.81 - Step 5: Solve for x
x = 101,586,892,126.81/317,881.68 - Step 6: Final answer
x = 319,574.54
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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.