Finding the Fourth Proportional to 187,278.75, 280,946.07 and 68,940.99
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Solution
The fourth proportional to 187,278.75, 280,946.07 and 68,940.99 is: 103,421.77
Step by Step Solution
- Step 1: Write the proportion equation
187,278.75 : 280,946.07 = 68,940.99 : x - Step 2: Convert to fraction form
187,278.75/280,946.07 = 68,940.99/x - Step 3: Cross multiply
187,278.75x = 280,946.07 × 68,940.99 - Step 4: Simplify right side
187,278.75x = 19,368,700,202.41 - Step 5: Solve for x
x = 19,368,700,202.41/187,278.75 - Step 6: Final answer
x = 103,421.77
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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.