Finding the Fourth Proportional to 150,317.96, 207,387.28 and 85,740.80
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Solution
The fourth proportional to 150,317.96, 207,387.28 and 85,740.80 is: 118,292.92
Step by Step Solution
- Step 1: Write the proportion equation
150,317.96 : 207,387.28 = 85,740.80 : x - Step 2: Convert to fraction form
150,317.96/207,387.28 = 85,740.80/x - Step 3: Cross multiply
150,317.96x = 207,387.28 × 85,740.80 - Step 4: Simplify right side
150,317.96x = 17,781,550,367.26 - Step 5: Solve for x
x = 17,781,550,367.26/150,317.96 - Step 6: Final answer
x = 118,292.92
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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.