Finding the Fourth Proportional to 354,913.20, 532,369.80 and 242,938.80
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Solution
The fourth proportional to 354,913.20, 532,369.80 and 242,938.80 is: 364,408.20
Step by Step Solution
- Step 1: Write the proportion equation
354,913.20 : 532,369.80 = 242,938.80 : x - Step 2: Convert to fraction form
354,913.20/532,369.80 = 242,938.80/x - Step 3: Cross multiply
354,913.20x = 532,369.80 × 242,938.80 - Step 4: Simplify right side
354,913.20x = 129,333,280,368.24 - Step 5: Solve for x
x = 129,333,280,368.24/354,913.20 - Step 6: Final answer
x = 364,408.20
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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.