Finding the Fourth Proportional to 256,740.87, 354,294.90 and 142,024.08
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Solution
The fourth proportional to 256,740.87, 354,294.90 and 142,024.08 is: 195,989.08
Step by Step Solution
- Step 1: Write the proportion equation
256,740.87 : 354,294.90 = 142,024.08 : x - Step 2: Convert to fraction form
256,740.87/354,294.90 = 142,024.08/x - Step 3: Cross multiply
256,740.87x = 354,294.90 × 142,024.08 - Step 4: Simplify right side
256,740.87x = 50,318,407,221.19 - Step 5: Solve for x
x = 50,318,407,221.19/256,740.87 - Step 6: Final answer
x = 195,989.08
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.