Finding the Fourth Proportional to 658,543.80, 987,815.70 and 159,907.80
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Solution
The fourth proportional to 658,543.80, 987,815.70 and 159,907.80 is: 239,861.70
Step by Step Solution
- Step 1: Write the proportion equation
658,543.80 : 987,815.70 = 159,907.80 : x - Step 2: Convert to fraction form
658,543.80/987,815.70 = 159,907.80/x - Step 3: Cross multiply
658,543.80x = 987,815.70 × 159,907.80 - Step 4: Simplify right side
658,543.80x = 157,959,435,392.46 - Step 5: Solve for x
x = 157,959,435,392.46/658,543.80 - Step 6: Final answer
x = 239,861.70
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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.