Finding the Fourth Proportional to 170,905.70, 256,358.55 and 170,905.70
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Solution
The fourth proportional to 170,905.70, 256,358.55 and 170,905.70 is: 256,358.55
Step by Step Solution
- Step 1: Write the proportion equation
170,905.70 : 256,358.55 = 170,905.70 : x - Step 2: Convert to fraction form
170,905.70/256,358.55 = 170,905.70/x - Step 3: Cross multiply
170,905.70x = 256,358.55 × 170,905.70 - Step 4: Simplify right side
170,905.70x = 43,813,137,438.74 - Step 5: Solve for x
x = 43,813,137,438.74/170,905.70 - Step 6: Final answer
x = 256,358.55
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1.5x scale
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.