Finding the Fourth Proportional to 256,905.68, 354,522.50 and 142,189.02
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Solution
The fourth proportional to 256,905.68, 354,522.50 and 142,189.02 is: 196,216.79
Step by Step Solution
- Step 1: Write the proportion equation
256,905.68 : 354,522.50 = 142,189.02 : x - Step 2: Convert to fraction form
256,905.68/354,522.50 = 142,189.02/x - Step 3: Cross multiply
256,905.68x = 354,522.50 × 142,189.02 - Step 4: Simplify right side
256,905.68x = 50,409,206,265.31 - Step 5: Solve for x
x = 50,409,206,265.31/256,905.68 - Step 6: Final answer
x = 196,216.79
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1.5x scale
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.