Finding the Fourth Proportional to 478,283.07, 717,175.50 and 178,517.12
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Solution
The fourth proportional to 478,283.07, 717,175.50 and 178,517.12 is: 267,682.70
Step by Step Solution
- Step 1: Write the proportion equation
478,283.07 : 717,175.50 = 178,517.12 : x - Step 2: Convert to fraction form
478,283.07/717,175.50 = 178,517.12/x - Step 3: Cross multiply
478,283.07x = 717,175.50 × 178,517.12 - Step 4: Simplify right side
478,283.07x = 128,028,104,794.56 - Step 5: Solve for x
x = 128,028,104,794.56/478,283.07 - Step 6: Final answer
x = 267,682.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.