Finding the Fourth Proportional to 192,579.71, 288,937.93 and 85,953.96
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Solution
The fourth proportional to 192,579.71, 288,937.93 and 85,953.96 is: 128,961.45
Step by Step Solution
- Step 1: Write the proportion equation
192,579.71 : 288,937.93 = 85,953.96 : x - Step 2: Convert to fraction form
192,579.71/288,937.93 = 85,953.96/x - Step 3: Cross multiply
192,579.71x = 288,937.93 × 85,953.96 - Step 4: Simplify right side
192,579.71x = 24,835,359,277.70 - Step 5: Solve for x
x = 24,835,359,277.70/192,579.71 - Step 6: Final answer
x = 128,961.45
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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.