Finding the Fourth Proportional to 658,539.80, 987,809.70 and 159,903.80
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Solution
The fourth proportional to 658,539.80, 987,809.70 and 159,903.80 is: 239,855.70
Step by Step Solution
- Step 1: Write the proportion equation
658,539.80 : 987,809.70 = 159,903.80 : x - Step 2: Convert to fraction form
658,539.80/987,809.70 = 159,903.80/x - Step 3: Cross multiply
658,539.80x = 987,809.70 × 159,903.80 - Step 4: Simplify right side
658,539.80x = 157,954,524,706.86 - Step 5: Solve for x
x = 157,954,524,706.86/658,539.80 - Step 6: Final answer
x = 239,855.70
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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.