Finding the Fourth Proportional to 313,421.64, 432,517.40 and 177,452.06
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Solution
The fourth proportional to 313,421.64, 432,517.40 and 177,452.06 is: 244,881.32
Step by Step Solution
- Step 1: Write the proportion equation
313,421.64 : 432,517.40 = 177,452.06 : x - Step 2: Convert to fraction form
313,421.64/432,517.40 = 177,452.06/x - Step 3: Cross multiply
313,421.64x = 432,517.40 × 177,452.06 - Step 4: Simplify right side
313,421.64x = 76,751,103,615.84 - Step 5: Solve for x
x = 76,751,103,615.84/313,421.64 - Step 6: Final answer
x = 244,881.32
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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.