Finding the Fourth Proportional to 150,416.19, 207,580.10 and 85,895.96
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Solution
The fourth proportional to 150,416.19, 207,580.10 and 85,895.96 is: 118,539.70
Step by Step Solution
- Step 1: Write the proportion equation
150,416.19 : 207,580.10 = 85,895.96 : x - Step 2: Convert to fraction form
150,416.19/207,580.10 = 85,895.96/x - Step 3: Cross multiply
150,416.19x = 207,580.10 × 85,895.96 - Step 4: Simplify right side
150,416.19x = 17,830,290,499.02 - Step 5: Solve for x
x = 17,830,290,499.02/150,416.19 - Step 6: Final answer
x = 118,539.70
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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.