Finding the Fourth Proportional to 260,107.20, 390,160.80 and 242,611.20
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Solution
The fourth proportional to 260,107.20, 390,160.80 and 242,611.20 is: 363,916.80
Step by Step Solution
- Step 1: Write the proportion equation
260,107.20 : 390,160.80 = 242,611.20 : x - Step 2: Convert to fraction form
260,107.20/390,160.80 = 242,611.20/x - Step 3: Cross multiply
260,107.20x = 390,160.80 × 242,611.20 - Step 4: Simplify right side
260,107.20x = 94,657,379,880.96 - Step 5: Solve for x
x = 94,657,379,880.96/260,107.20 - Step 6: Final answer
x = 363,916.80
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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.