Finding the Fourth Proportional to 239,621.15, 359,487.05 and 71,137.71
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Solution
The fourth proportional to 239,621.15, 359,487.05 and 71,137.71 is: 106,722.99
Step by Step Solution
- Step 1: Write the proportion equation
239,621.15 : 359,487.05 = 71,137.71 : x - Step 2: Convert to fraction form
239,621.15/359,487.05 = 71,137.71/x - Step 3: Cross multiply
239,621.15x = 359,487.05 × 71,137.71 - Step 4: Simplify right side
239,621.15x = 25,573,085,155.97 - Step 5: Solve for x
x = 25,573,085,155.97/239,621.15 - Step 6: Final answer
x = 106,722.99
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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.