Finding the Fourth Proportional to 656,139.21, 984,208.74 and 157,503.21
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Solution
The fourth proportional to 656,139.21, 984,208.74 and 157,503.21 is: 236,254.80
Step by Step Solution
- Step 1: Write the proportion equation
656,139.21 : 984,208.74 = 157,503.21 : x - Step 2: Convert to fraction form
656,139.21/984,208.74 = 157,503.21/x - Step 3: Cross multiply
656,139.21x = 984,208.74 × 157,503.21 - Step 4: Simplify right side
656,139.21x = 155,016,035,860.06 - Step 5: Solve for x
x = 155,016,035,860.06/656,139.21 - Step 6: Final answer
x = 236,254.80
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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.