Finding the Fourth Proportional to 242,585.70, 363,878.55 and 142,793.70
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Solution
The fourth proportional to 242,585.70, 363,878.55 and 142,793.70 is: 214,190.55
Step by Step Solution
- Step 1: Write the proportion equation
242,585.70 : 363,878.55 = 142,793.70 : x - Step 2: Convert to fraction form
242,585.70/363,878.55 = 142,793.70/x - Step 3: Cross multiply
242,585.70x = 363,878.55 × 142,793.70 - Step 4: Simplify right side
242,585.70x = 51,959,564,505.14 - Step 5: Solve for x
x = 51,959,564,505.14/242,585.70 - Step 6: Final answer
x = 214,190.55
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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.