Finding the Fourth Proportional to 495,428.70, 743,143.05 and 121,451.70
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Solution
The fourth proportional to 495,428.70, 743,143.05 and 121,451.70 is: 182,177.55
Step by Step Solution
- Step 1: Write the proportion equation
495,428.70 : 743,143.05 = 121,451.70 : x - Step 2: Convert to fraction form
495,428.70/743,143.05 = 121,451.70/x - Step 3: Cross multiply
495,428.70x = 743,143.05 × 121,451.70 - Step 4: Simplify right side
495,428.70x = 90,255,986,765.69 - Step 5: Solve for x
x = 90,255,986,765.69/495,428.70 - Step 6: Final answer
x = 182,177.55
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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.