Finding the Fourth Proportional to 150,314.58, 207,217.17 and 121,971.06
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Solution
The fourth proportional to 150,314.58, 207,217.17 and 121,971.06 is: 168,144.02
Step by Step Solution
- Step 1: Write the proportion equation
150,314.58 : 207,217.17 = 121,971.06 : x - Step 2: Convert to fraction form
150,314.58/207,217.17 = 121,971.06/x - Step 3: Cross multiply
150,314.58x = 207,217.17 × 121,971.06 - Step 4: Simplify right side
150,314.58x = 25,274,497,875.10 - Step 5: Solve for x
x = 25,274,497,875.10/150,314.58 - Step 6: Final answer
x = 168,144.02
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1.5x scale
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.