Finding the Fourth Proportional to 354,516.20, 531,774.30 and 242,541.80
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Solution
The fourth proportional to 354,516.20, 531,774.30 and 242,541.80 is: 363,812.70
Step by Step Solution
- Step 1: Write the proportion equation
354,516.20 : 531,774.30 = 242,541.80 : x - Step 2: Convert to fraction form
354,516.20/531,774.30 = 242,541.80/x - Step 3: Cross multiply
354,516.20x = 531,774.30 × 242,541.80 - Step 4: Simplify right side
354,516.20x = 128,977,495,915.74 - Step 5: Solve for x
x = 128,977,495,915.74/354,516.20 - Step 6: Final answer
x = 363,812.70
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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.