Finding the Fourth Proportional to 163,628.70, 245,097.45 and 135,980.70
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Solution
The fourth proportional to 163,628.70, 245,097.45 and 135,980.70 is: 203,683.85
Step by Step Solution
- Step 1: Write the proportion equation
163,628.70 : 245,097.45 = 135,980.70 : x - Step 2: Convert to fraction form
163,628.70/245,097.45 = 135,980.70/x - Step 3: Cross multiply
163,628.70x = 245,097.45 × 135,980.70 - Step 4: Simplify right side
163,628.70x = 33,328,522,819.22 - Step 5: Solve for x
x = 33,328,522,819.22/163,628.70 - Step 6: Final answer
x = 203,683.85
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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.