Finding the Fourth Proportional to 178,963.68, 268,203.60 and 79,106.88
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Solution
The fourth proportional to 178,963.68, 268,203.60 and 79,106.88 is: 118,553.38
Step by Step Solution
- Step 1: Write the proportion equation
178,963.68 : 268,203.60 = 79,106.88 : x - Step 2: Convert to fraction form
178,963.68/268,203.60 = 79,106.88/x - Step 3: Cross multiply
178,963.68x = 268,203.60 × 79,106.88 - Step 4: Simplify right side
178,963.68x = 21,216,750,000.77 - Step 5: Solve for x
x = 21,216,750,000.77/178,963.68 - Step 6: Final answer
x = 118,553.38
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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.