Finding the Fourth Proportional to 353,193.95, 529,470.50 and 128,395.62
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Solution
The fourth proportional to 353,193.95, 529,470.50 and 128,395.62 is: 192,476.94
Step by Step Solution
- Step 1: Write the proportion equation
353,193.95 : 529,470.50 = 128,395.62 : x - Step 2: Convert to fraction form
353,193.95/529,470.50 = 128,395.62/x - Step 3: Cross multiply
353,193.95x = 529,470.50 × 128,395.62 - Step 4: Simplify right side
353,193.95x = 67,981,692,477.23 - Step 5: Solve for x
x = 67,981,692,477.23/353,193.95 - Step 6: Final answer
x = 192,476.94
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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.